Sarajevo weather in September

September in Sarajevo: warm, a little rain, with clean air — one of the best months to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Sarajevo🇧🇦 Bosnia and Herzegovina · Balkans · City92
  1. 48Jan
  2. 63Feb
  3. 70Mar
  4. 80Apr
  5. 89May
  6. 88Jun
  7. 82Jul
  8. 84Aug
  9. 92Sep
  10. 76Oct
  11. 59Nov
  12. 50Dec

#1 of 12 months in Sarajevo · #153 of 1413 destinations to visit in September · comfort 92/100 (tier S)

Days
25°C
Nights
12°C
Wet days
8
Sun
9.4 h
Humidity
75%
Daylight
13 h
Sarajevo, Bosnia and Herzegovina
Photo: Drago Rapovac · Pexels

Traveller notes on Sarajevo in September

September and October are the forum's picks for Bosnia — pleasant temperatures, fewer crowds. In Sarajevo that means warm days around 22°C needing no coat, and evenings that turn chilly enough for a cardigan or light hoodie once lows drop near 13. Locals draw the contrast with the summer just gone: July and early August can rain almost daily in some years, while September normally doesn't — and the record agrees, making September the second-driest month here after October. If the trip carries on to Mostar, it is still shorts-and-t-shirt weather down there.
Tripadvisor community · September · 1 month ago · Read more on Tripadvisor ↗

Other months in Sarajevo

Sarajevo-forum threads on February travel confirm it's well worth visiting despite sitting deep in winter, posters calling the valley setting genuinely atmospheric under snow, though the same geography traps fog for days at a stretch when a high-pressure system settles in. Regulars are candid the cold here is real, with past Januaries dropping to nearly minus 20 and February not far behind, so serious layers and proper boots for icy pavements are non-negotiable rather than optional. Snowfall is a normal, expected feature of the month rather than a rare event. The old town's cafes and markets stay lively regardless of the weather, and posters call the quieter winter crowds a genuine trade for the harsher conditions. The record: 10C days feeling like 7C, 0.6C nights, 69mm across 8.6 days, a notably high 31.3cm of fresh snowfall, 79 percent humidity and 6.5 hours of sun.
BascarsijaFebruaryRegular · February · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe December snow in Sarajevo as genuinely inconsistent year to year - some winters bring plenty, one recent year saw none at all in the city itself - reflecting the continental climate's capacity for severe winters without guaranteeing them. Posters note the city can see days of lingering fog and smog with fairly high air pollution even when snow doesn't materialize at lower elevation, while the surrounding mountains reliably hold much more snow than the city center. Posters consistently recommend switching to winter tires for anyone planning to drive up to higher-altitude areas like Igman or Jahorina, even when city-center roads themselves stay clear. Posters generally rate December as cold and snow-capable but not a sure thing at Sarajevo's own elevation, real snow more reliably found in the surrounding mountains.
Tripadvisor community · December · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe early March in Sarajevo as ranging from around 8C by day down to -2C at night, with snow still a real possibility - one visitor reported snowfall in early March alongside temperatures dropping as low as -7C. Posters consistently flag Sarajevo's sharp mountain climate as the reason for this kind of variability, with days that can feel warmish by early afternoon but take a long time to properly warm up, and posters generally recommending a proper coat regardless of how the morning looks. Posters describe February and March as both still capable of bringing meaningful cold and snow to the city. Posters generally rate March as a transitional month best approached with layered, cold-weather-ready clothing rather than an assumption that spring has properly arrived.
Tripadvisor community · March · 1 month ago · Read more on Tripadvisor ↗
Sarajevo forum regulars repeat the same comparison from the July note: the city runs a bit cooler than other parts of Bosnia, with relatively often afternoon showers depending on the summer — one recalled year saw it rained almost every day in July and the first week of August. August's specific draw beyond the weather: the Sarajevo Film Festival brings a special atmosphere citywide, cultural life and nightlife both genuinely busy. Standard advice: prepare for hot weather around 25°C with rain always a possibility, and pack a light layer regardless since Sarajevo runs cooler than nearby Mostar even in peak summer. Our record: 26.6°C days, 16.7°C nights and 12.2 rain days — warm with real, frequent rain, matching the “cooler than Mostar, afternoon showers common” read established for the region.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Sarajevo's card on the map.

Sarajevo climate normals — September

Daytime high25°C / 76°F🌤 warm
Nighttime low12°C / 54°F
Feels like (high)25°C / 77°F
Rainfall68 mm / 2.7 in🌦 some rain
Rainy days8 days
Humidity75%💧 humid
Dew point11°C / 52°F
Sunshine9.4 h/day
Daylight12.5 h
Wind10 km/h / 6 mph
Air quality (US AQI)42🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Sarajevo in September

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

BusySarajevo Half Marathon, school holidays in 3 of the markets that fill it(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Sarajevo's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherSarajevo's best weather comes in May, June and September — separate windows, not one continuous season.

September includes Sarajevo Half Marathon.

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Best weatherFair weatherToughest weather

What's on in Sarajevo in September

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Festival

    Sarajevo Half Marathon

    10–25 Sep · usuallySporting eventCrowdedClosures

    The half marathon and 5k in the third week of September, part of the Sarajevo Run Fest, draw thousands of runners from dozens of countries. Central roads close for the race morning. Source ↗

What's on around the world in September →

Nearby, and something's on

Within 300 km of Sarajevo — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Sarajevo?

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Sarajevo in September — FAQ

Is September a good time to visit Sarajevo?
September in Sarajevo: warm, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Sarajevo on SeasonMap's comfort score (92/100).
What is the weather like in Sarajevo in September?
In September, Sarajevo averages a daily high of 24.6°C and a low of 12°C, with about 68.1 mm of rain over roughly 7.7 rainy days.
What is the air quality in Sarajevo in September?
Sarajevo has a mean US Air Quality Index of about 42 in September.

Within 300 km: Dubrovnik's Island ferry season around 15 Apr – 20 Oct, and Korčula's Moreska sword dance on 1 Jun – 30 Sep.