Azerbaijan's best season: which months work, and how they line up with the Japanese calendar

The short answer first: go between late April and early June, or between September and late October.

Temperature is only half of why. Azerbaijan puts the Caspian seafront and stone villages above 2,000 m into the same itinerary, and the two run on different calendars. In March, when Baku is already comfortable, the mountain roads are still under snow. So "which month" depends on how far from the coast you intend to go.

Birtour is a destination management company based in Baku. What follows is what we tell clients before they book, with sources and the dates we checked them. Tokyo stays the reference point throughout, because most people reading this are planning travel out of Japan, or advising someone who is.

Why the mountain roads decide the month, not the thermometer

Baku is comfortable for eight months of the year and survivable in the other four. The mountains are not. The road to Khinalig shuts for days at a time under snow, and the country's own roads agency names avalanches, landslides and rockfall as the causes. Pick the month against the highest point on your route, not the capital.

That single constraint explains most of the disagreement you will find between guides. A page written for someone who will see Baku, Gobustan and the Old City will tell you March to November. A page written for someone going to Khinalig has to say late May to early October. Both are right about their own itinerary. Neither is right about yours until you say where you are going.

Baku temperatures and rainfall by month

Baku runs mild and dry. Average highs cross 15 °C in April and stay there into late October, and the whole year brings 291 mm of rain, less than a fifth of Tokyo's. January averages a 7.4 °C high, July and August around 29. Wind, not rain, is what makes a Baku day feel different from the number.

Figures are climate-data.org normals for 1991 to 2021, checked by us on 28 July 2026.

Climates to Travel describes Baku's climate as close to semi-desert, and that matches how we plan: losing a full day to rain almost never happens in this city.

What Baku has instead is wind. The cold khazri from the north and the warm gilavar from the south decide how the city feels, and a khazri day reads colder than the thermometer says.

The mountain side is a different country

Sheki, Gabala and Guba run five to ten degrees below Baku in the same hour, and two to three times wetter across the year. A light shirt in Baku and a jacket in Sheki on the same afternoon is normal. January lows sit below freezing in all three towns, and the villages further up are colder again.

Average highs and lows for the three main mountain-side bases (climate-data.org, 1991 to 2021 normals, checked by us on 28 July 2026):

Annual rainfall runs 684 mm in Sheki and 737 mm in Gabala. Guba posts the biggest single months of the three, 106 mm in June alone. That is more than double Baku's total, which is why the mountain side is green and why it needs rain gear. The wet peak is May and June.

These are town figures. The villages further up are colder again; Khinalig sits at about 2,350 m.

Nakhchivan is different again

Nakhchivan is an exclave on an inland plateau at about 900 m, cut off from the rest of the country, and it has the widest annual swing of any destination on a normal Azerbaijan route. January averages a 3.5 °C high and a minus 5.3 °C low, with cold snaps below minus 20. July averages 34.7 °C, roughly five degrees above Baku on the same day.

If your route includes it, May to June and September to October suit it best. The city itself is covered on our Nakhchivan page.

Two operational notes that have nothing to do with the weather in the destination and everything to do with getting there. Baku to Nakhchivan is a short domestic hop, and it was suspended and resumed twice during 2026 for weather, most recently reported on 7 July. We price Nakhchivan with a contingency day rather than as a routine connection, and we would not put it on the day before an international departure.

The second: Japan's Ministry of Foreign Affairs advisory for Azerbaijan has not been revised since 7 December 2021. Baku and everywhere outside the listed zones sit at Level 1. The Armenian border zone, which includes Nakhchivan's border with Armenia, is Level 4. Anyone telling you there was a 2026 revision is wrong. We go through the levels district by district on the safety guide.

When is the road to Khinalig open?

Reliably, from late May to early October: the weeks with the most stable road conditions, and the season when the mountain pastures are in use. From November to April, heavy snow closes the road in practice, sometimes for days at a time, and we do not take self-drive convoys up the mountain then. This one constraint shapes itineraries more than any temperature table.

Until this refresh we cited our own operating record for that window, because we could not find a published source that said it. There is one. Azerbaijan's roads agency, explaining why an alternative route was commissioned, writes that the 2007-built Quba to Khinalig road suffers frequent long-duration closures from avalanches, landslides and large rockfall onto the carriageway (aayda.gov.az, 23 July 2020). That is the government's own account of the road, and it matches what our drivers report.

The alternative route was ordered by presidential decree: Alpan to Kürkün to Susay, 24 km, branching from km 9 of the Quba to Qusar road, plus a 30 km Susay to Khinalig continuation and a 4.8 km spur to Qriz, 58.8 km in total, built between 1,500 and 2,500 m. The agency page describing it is dated July 2020 and calls the Khinalig leg a final stage. We found no opening announcement and the agency's news index is gone, so we will not tell you there is a new road to Khinalig. There may be. We cannot show it to you. Our page on the Quba to Khinalig road carries the detail.

One thing on the way up did improve. The M-1 from Baku towards Quba had 66 km of failed concrete pavement, km 53 to 119, stripped and relaid in asphalt, reopened to traffic in June 2026. That is the stretch under every Khinalig, Shahdag and Laza programme, and it now drives better than it did last summer.

The main road up from Guba is paved, but paved is not the same as passable; the road surface and the state of the pass are separate questions. Travel guides that cover the village in English settle on the same careful phrasing for winter, "the road can become impassable" (Backpack Adventures, LAIDBACK TRIP).

A winter visit is not impossible. On a settled day, with a driver who knows the mountain and a vehicle suited to it, you can get up. The judgment is whether you can accept getting up and finding the way back closed for a few days. On a schedule with no slack, we would not place that bet. Our own expeditions go in September and early October, when the weather steadies and the autumn light arrives.

Does Khinalig need a permit?

The village and the walks beyond it are two different products, and only one of them books late. No guide or commercially sold day tour we can find describes a tourist permit for Khinalig village itself, and the road in is sold as an ordinary excursion from Baku. That is an absence of evidence rather than a government statement, and we say so rather than dress it up.

The treks past the village are documented and they are not casual. The Gizilgaya circuit, Mount Shahdag and the Khinalig to Laza crossing sit inside Shahdag National Park and run toward the Russian border, and operators obtain three separate permissions for them: State Border Service, Shahdag National Park, and the Ministry of Emergency Situations. One operator publishes the rule plainly: register and pay in full at least 30 days ahead. Passports are collected at the park checkpoint by border troops. None of that is a last-minute add-on, and the statutory framework behind it, border zones and border strips under the 1991 Law on the State Border, is set out on our border-zone permits page.

When should you go to Sheki and Gabala?

May to June or September to October. May and June are the greenest months and also the wettest, so you trade colour for rain. September and October bring drier, more predictable weeks, with Sheki daytime highs easing from 22.7 to 16.5 °C, walking temperatures the whole way. Winter suits the ski resorts more than the 300 km drive from Baku.

Weather Spark puts Sheki's snow season at 7 December to 23 March, peaking in February at about 4.6 cm on average. The old town and the Khan's Palace stay open through winter; the harder part is the drive from Baku, which becomes hard to time once the passes along the way are in play. The Khans' Palace itself runs 09:00 to 19:00 and sells dated sessions on iTicket in a 1 to 15 AZN band, published through 30 September 2026 when we looked.

One wet-season road to know about, because it sits on the Baku to Sheki side trips rather than on the main highway. The Ismayilli to Lahic road blocks outright after heavy rain, from mudflow and rockfall, and it is cleared reactively. This is a repeat pattern across seasons rather than a single bad year. If Lahic is on your May or June itinerary, it wants a fallback day, not a fixed slot.

Do the mountain resorts run in summer?

Both do, and the lifts are the reason to go up. On 10 August 2026 Tufandag above Gabala had four of four lifts running, none of its ten ski slopes, and 23 °C on the mountain. Shahdag above Gusar publishes summer hours of 09:00 to 17:00 for lifts, slopes and activities, on a live page carrying the same date. Neither is a winter-only asset.

Tufandag prices its summer guided trails per group rather than per person, 50 to 130 AZN for one to five people: Əkizdərə at 50, the Duruca waterfall at 60, Qoşa Daşlar at 90, and the long Yatmış Gözəl to Peyğəmbər Bulağı to Laza walk at 130, graded 5 out of 5 and quoted at 8 to 10 hours. Two trails were shut for repair when we looked, Yatmış Gözəl to Duruca and At yaylağı, so read the board at the base station rather than a blog post.

Shahdag sells pedestrian lift tickets at 20 AZN adult and 15 for children aged 5 to 11 on chairlifts 2 and 3, and 22 and 16 on gondolas 1 and 5. Its summer menu runs to zip-line, coaster, off-road and Polaris tours, lake swimming, camping and horse riding. Shahdag Mountain Resort is a state asset under the State Tourism Agency, which matters if you are contracting rather than buying a ticket at the window.

For winter: both resorts opened the 2025/26 season on 15 December 2025. The 2026/27 opening date had not been announced when we checked on 11 August 2026, and neither resort published a closing date for last season either. Treat mid-December as a pattern, not a promise. Tufandag's own board on that date read one day at 32 AZN adult and 26 child, three hours at 27 and 23, a season pass at 600 and 400, and night skiing at 15 and 12 running every Saturday.

How hot is Baku in summer, really?

Hotter than the headline number, and the two normals sets disagree by two degrees. climate-data.org gives July and August average highs of 29.1 and 29.6 °C on 1991 to 2021 data. Climates to Travel reads 31.4 and 31.7 on a 1999 to 2020 period, and puts heat waves at 38 to 40. Trade sources describing the days rather than the averages settle on 32 to 38. We plan against the top of that range.

The air is far drier than Tokyo's, so shade and the Caspian wind make the city manageable. Shadeless sites are the real problem. The three places where the heat costs you are Gobustan's rock art, the mud volcanoes, and the Absheron fire sites, all open ground with no cover.

There is a scheduling lever here that most itineraries miss, and it comes out of the opening hours rather than the weather. Gobustan closes at 17:00. Ateshgah runs to 20:00. So in July and August the running order writes itself: Gobustan at opening, museums and palaces through the middle of the day, and the fire temple in the last two hours of light. The Yanardag and Ateshgah combo ticket costs 25 AZN and is valid for 72 hours from the start of your booked session, which means those two sites no longer have to sit in the same half-day at all. Yanardag's own published tariff is 15 AZN for foreign visitors, 2 for locals, 1 for students, with under-12 foreign visitors free and a 10 per cent group discount from ten people. Gobustan and Ateshgah both sit in a 1 to 15 AZN band on iTicket, the reserves' official channel, sold as dated and timed sessions with QR entry. All four re-read by us on 10 August 2026.

Summer pays something back too. The Caspian rises above 23 °C from July to September and is swimmable (Climates to Travel). The mountain towns run cooler than the coast, which is why Sheki and Gabala are where Azerbaijanis themselves spend summer. And the road to Khinalig is at its most dependable exactly then.

Which Japanese holiday window fits Azerbaijan best?

Silver Week 2026, Saturday 19 to Wednesday 23 September. It is the first five-day Silver Week since 2015, it sits inside the current visa waiver, Baku averages a 25.1 °C high that month against 23 mm of rain, and September is near the bottom of the Tokyo fare range. Nothing else on the Japanese calendar lines up this well with this country.

Fares are the Japanese all-in return series we use on the flights page, prices updated 11 August 2026. Climate figures are the climate-data.org column above.

Silver Week 2026 is built from Respect for the Aged Day on Monday 21 September, a bridge holiday on Tuesday 22, and the Autumnal Equinox on Wednesday 23. Five consecutive days is rare enough that the last one was eleven years ago. It also happens to fall in the two best-conditioned months this country has.

Here is the trap, and it is two days wide. The Formula 1 Azerbaijan Grand Prix runs 25 to 27 September 2026. Silver Week ends on Wednesday the 23rd. Extend by a couple of days without checking and you are inside race week: street closures around the Old City and the seafront boulevard, and hotel rates that move sharply. Fly home on the 24th, or commit to the race properly and book the hotel months out. The half-measure is the expensive version of both.

Golden Week 2026 fell from 2 to 6 May, before the visa waiver started on 1 July 2026, so the waiver's only Golden Week is 2027, Saturday 1 to Wednesday 5 May, and it sits just inside a window that closes on 1 July 2027. April is the peak of the Japanese fare series at 217,012 yen; the first days of May are better on both weather and likely price than late April. And 2027 has no Silver Week at all, because Respect for the Aged Day lands on Monday 20 September with the equinox on Thursday the 23rd and no bridge between them. Silver Week 2026 is therefore the only one that falls inside the waiver period.

Obon is the reverse trade. August 2026 is the fare trough at 166,190 yen and the month when Gobustan is a genuine physical test. If Obon is the only week you have, the itinerary has to be built around the shade rather than around the sights, and the mountain towns earn their place: Sheki and Gabala are where Azerbaijanis go in August for exactly that reason.

One number for scale, because Japanese travellers ask us where the crowds are. Japanese arrivals to Azerbaijan were 4,802 for the full year 2025 (State Statistical Committee), and the first quarter of 2026 brought 649 against 701 a year earlier. Roughly one seventh of the annual figure lands in the first quarter. Winter is thin in both directions, which is another way of saying that a January trip will feel like the country belongs to you.

Holidays and the weeks that fill up

Six Azerbaijani dates move hotel rates or close offices, plus one race weekend. Novruz in March is the big one, five statutory days that fill domestic transport and shut shops. The Formula 1 weekend in late September is the other. Everything else is a day or two of closed government offices rather than a planning problem.

Novruz is the new year festival timed to the spring equinox, fixed at five public holidays by Article 105 of Azerbaijan's Labour Code. The official non-working days in 2026 were 20 to 24 March, and because they met the Ramadan holiday that year, the break stretched from 20 to 30 March (Report.az). The Cabinet of Ministers publishes the 2027 dates by the end of 2026; Novruz and Gurban dates are announced fresh each year, so check the announcement if you are planning around them.

Is Novruz a time to avoid? We would not put it that way. On each of the four Tuesdays before the equinox a different element is honoured, water, fire, wind and earth in turn, and the fire-jumping happens only then. You trade crowds for scenes that exist at no other time of year.

The September 2026 race weekend is impossible to ignore in planning terms. The circuit runs past the Old City and along the seafront boulevard, so traffic restrictions and hotel pricing reach well beyond the grandstands. Unless the race is why you are coming, aim for early September or October.

What to pack, month by month

One light jacket covers most of the year, because the mountain side runs colder than the coast in every month. Add a rain shell for May and June, a windproof layer from November to March, and covered shoulders and knees for mosques in any season. Broken-in shoes matter more than any of it.

April to May. A light shirt covers the day; mornings, evenings and the mountain side are colder, so bring one light jacket. May and June are the wet months in the mountains; pack a folding umbrella or a light rain shell.

June to August. Short sleeves are fine in Baku. Mosques and mausoleums require covered shoulders and knees; a thin scarf solves it on the spot for women. Mountain nights drop to around 15 °C, so carry a light long-sleeve layer.

September to October. The easiest packing of the year. A shirt by day, a jacket for the evening. October mornings in Sheki and Guba average lows of 7.9 °C, so mountain overnights start cold.

November to March. Baku rarely goes below freezing, but the wind takes the felt temperature well under the number. A coat plus a windproof layer; gloves and waterproof shoes if you head for the mountains.

On footwear we say the same thing in every season. The old towns of Baku and Sheki are cobbled and sloped, and broken-in shoes do more for a trip than any seasonal wardrobe.

What we would not recommend

Five season-driven decisions we argue clients out of: Khinalig in winter on a tight schedule, a Khinalig trek booked late, Nakhchivan the day before an international departure, extending Silver Week into the race weekend by accident, and a fixed Lahic slot in the wet months.

Khinalig between November and April on a schedule with no slack. Getting up is often possible. Getting back down on a chosen day is the part nobody can promise, and the roads agency's own language about the road is why.

A Khinalig trek booked at short notice. The walks beyond the village need three permissions and, on the operator we can quote, registration and full payment 30 days out. The village is a day tour. The mountain behind it is not.

Nakhchivan on the day before you fly home. The route was suspended twice in 2026 for weather. Put a spare day behind it, or fly it earlier in the trip.

Silver Week plus two days. Wednesday 23 September is the end of the holiday. Friday 25 September is the start of the Grand Prix. Two days of drift and the trip costs materially more.

A fixed Lahic day in May or June. Mudflow and rockfall close that road after heavy rain, repeatedly, across seasons. Give it a fallback rather than a slot.

If you want the season you saw on screen

Season two of the TBS drama VIVANT was filmed from August to the end of October 2025, across eight regions of Azerbaijan: Baku, Sumgayit, Ganja, Nakhchivan, Shamakhi, Gabala, Sheki and Guba. The light and the colour of the grass on screen belong to late summer and autumn, so September to October is the answer as written, and it happens to be the same answer we would give anyway.

How the eight sit on the map, and how many days they take, is worked out in the filming regions map.

Birtour's ten-day tour is the only one that covers all eight regions Baku Media Center named. The tour runs year-round, with one caveat we state before anyone books: in winter we take the northern highlands, Khinalig included, out of the route and give those days to Baku and Sheki. It is not the same trip, and we spell out the difference in the quote. How we arrange Japanese-speaking guides, confirmed booking by booking rather than held as a standing roster, is on the Japanese-speaking guide page.

For travellers who have picked the month and now need the routing, the carriers, journey times and fares are on the Tokyo to Baku flights page.

Sources

We re-ran this page on 11 August 2026. What changed: the Khinalig closure window now carries a government source rather than only our own record, the border-zone permit split for treks is new, the resort and reserve figures are dated to 10 August 2026, and the Japanese holiday alignment is new. The climate tables still carry their 28 July check and were not re-fetched.

• climate-data.org, the Baku, Sheki, Gabala and Guba pages, 1991 to 2021 normals (checked by us on 28 July 2026)
• Climates to Travel, Azerbaijan: Baku heat waves and winds, Caspian water temperature, Nakhchivan climate (checked by us on 28 July 2026); the 1999 to 2020 Baku monthly table re-read on 11 August 2026
• Weather Spark, Sheki: snow period and season boundaries (checked by us on 28 July 2026)
• aayda.gov.az, the roads agency on frequent long-duration closures of the Quba to Khinalig road and on the Alpan to Kürkün to Susay alternative route, 23 July 2020
• Azerbaijani press on the M-1 Baku to Quba resurfacing, km 53 to 119, reopened June 2026
• dsx.gov.az, Law on the State Border of 9 December 1991, Chapter III, on border zones, border strips and entry passes
• mountainguide.az, published permission requirements and the 30-day registration rule for the Gizilgaya circuit
• tufandag.com, live lift and slope status, summer trail prices and ski passes (checked by us on 10 August 2026)
• shahdag.az, live-info page stamped 10 August 2026, summer hours and pedestrian lift tickets
• iticket.az, dated sessions and price bands for Gobustan, Ateshgah and the Sheki Khans' Palace; yanardag.az for the Yanardag tariff and the 72-hour combo ticket (both checked by us on 10 August 2026)
• Official website of the President of the Republic of Azerbaijan, public holidays list: Novruz is five days, with dates announced each year (checked by us on 28 July 2026)
• Report.az, non-working days and the production calendar for 2026: Novruz 20 to 24 March
• English Wikipedia, "Novruz in Azerbaijan", on the five-day provision in Article 105 of the Labour Code
• Formula 1 official announcement: the 2026 Azerbaijan Grand Prix runs 25 to 27 September (via Caliber.az, 10 June 2025)
• karavan.az, 18 December 2025: Shahdag and Tufandag opened the 2025/26 season on 15 December 2025
• National Astronomical Observatory of Japan, 暦要項 for 2026 and 2027, the legal basis for the public-holiday dates used in the alignment table
• tour.ne.jp, Tokyo to Baku all-in return fares by departure month, prices updated 11 August 2026
• Japan's Ministry of Foreign Affairs, Azerbaijan danger information dated 7 December 2021 and still current on 11 August 2026
• State Statistical Committee of Azerbaijan, inbound bulletins: 4,802 Japanese arrivals in 2025, 649 in the first quarter of 2026 against 701 a year earlier
• The Khinalig operating pattern between November and April remains our own record; the closure mechanism is now the roads agency's

Climate normals are averages of past years, not a forecast for your dates. As departure approaches, check an actual forecast alongside this page.

Disclosure

Birtour is not affiliated with TBS, with the VIVANT production committee, or with the travel companies selling packaged VIVANT departures. We are a destination management company based in Baku. We did not work on the production.