SeasonMapColmar weather in September
France
September in Colmar: nice, a little rain, with clean air — one of the best months to visit.
#1 of 12 months in Colmar · #167 of 1383 destinations to visit in September · comfort 91/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Colmar in September
Colmar's forum recommends packing layers for a September visit, with summer-weight clothing generally appropriate for the days. Regulars note the Alsace region's weather stays genuinely changeable this time of year, and that it's worth checking a dedicated forecast site closer to the trip rather than relying on general seasonal expectations.
Add your own note from Colmar's card on the map.
Colmar climate normals — September
| Daytime high | 22°C / 71°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 56°F | |
| Feels like (high) | 21°C / 70°F | |
| Rainfall | 74 mm / 2.9 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 12°C / 53°F | |
| Sunshine | 9.3 h/day | |
| Daylight | 12.6 h | |
| Wind | 11 km/h / 7 mph | |
| Air quality (US AQI) | 38 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Colmar 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.
Busyschool holidays in 3 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Colmar'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 weatherColmar's best weather comes in June, July and September — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Colmar in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Vendanges on the wine route
1 Sep – 20 Oct · usuallyHarvestPicking runs through September and into October in the villages either side of town, and the late-harvest grapes hang on longest. Growers who normally pour at the door are out in the rows instead.
Nearby, and something's on
Within 300 km of Colmar — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Colmar?
Colmar in September — FAQ
- Is September a good time to visit Colmar?
- September in Colmar: nice, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Colmar on SeasonMap's comfort score (91/100).
- What is the weather like in Colmar in September?
- In September, Colmar averages a daily high of 21.8°C and a low of 13.2°C, with about 73.9 mm of rain over roughly 11.4 rainy days.
- What is the air quality in Colmar in September?
- Colmar has a mean US Air Quality Index of about 38 in September.
Other months in Colmar
Compare Colmar in September
Warmer or cooler than Colmar in September
Similar destinations in Western Europe — September
Within 300 km: Strasbourg's Cathedral summer light show around 1 Jul – 5 Sep, and Interlaken's Lake steamers on summer timetable on 9 May – 11 Oct.