SeasonMapSibiu weather in September
Romania
September in Sibiu: nice, a little rain, with clean air — one of the best months to visit.
#1 of 12 months in Sibiu · #99 of 1383 destinations to visit in September · comfort 93/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sibiu in September
Notes from nearby Brașov (116 km away)
Sibiu doesn't have its own notes for September yet — these are about Brașov, close enough to share the season.
Brașov's forum rates early September as the pick of the month, generally summer-like and pleasant around 21°C, with the back half of the month bringing more rain and cooler temperatures. Regulars flag nearby mountain spots like Bâlea Lake as running noticeably colder than the city, under 15°C, so a mountain day trip needs warmer layers than a stroll through Brașov itself.
Add your own note from Sibiu's card on the map.
Sibiu climate normals — September
| Daytime high | 24°C / 74°F | 😎 nice |
|---|---|---|
| Nighttime low | 10°C / 51°F | |
| Feels like (high) | 23°C / 73°F | |
| Rainfall | 52 mm / 2.1 in | 🌦 some rain |
| Rainy days | 7 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 11°C / 51°F | |
| Sunshine | 9.7 h/day | |
| Daylight | 12.5 h | |
| Wind | 9 km/h / 6 mph | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sibiu 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.
BusySibiu Music Festival, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Sibiu'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 weatherSibiu's best weather comes in June, August and September — separate windows, not one continuous season.
September includes Sibiu Music Festival.
Best weatherFair weatherToughest weather
What's on in Sibiu in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Opening
Transfagarasan road open
25 Jun – 31 Oct · usuallyTrail seasonThe mountain road south of the city is shut by snow from late October until about the end of June, which puts the whole Fagaras crossing inside a four-month window. Check the signs at Cartisoara before committing. Source ↗
- Festival
Sibiu Music Festival
5–20 Sep · usuallyMajor festivalCrowdedFree stages in each of the squares and along the old walls through September, anchored by the Sibiu Jazz Festival, at the point the Transylvanian evenings start to turn cold. Smaller and easier than the June festival. Source ↗
Nearby, and something's on
Within 300 km of Sibiu — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Sibiu?
Sibiu in September — FAQ
- Is September a good time to visit Sibiu?
- September in Sibiu: nice, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Sibiu on SeasonMap's comfort score (93/100).
- What is the weather like in Sibiu in September?
- In September, Sibiu averages a daily high of 23.6°C and a low of 10.4°C, with about 52.1 mm of rain over roughly 7 rainy days.
- What is the air quality in Sibiu in September?
- Sibiu has a mean US Air Quality Index of about 35 in September.
Other months in Sibiu
Compare Sibiu in September
Warmer or cooler than Sibiu in September
Similar destinations in Eastern Europe — September
Within 300 km: Brașov's Bear watching season around 1 May – 30 Sep, and Bucharest's George Enescu Festival around 27 Aug – 26 Sep.