SeasonMapBaden-Baden weather in September
Germany
September in Baden-Baden: nice, rainy, with clean air — one of the best months to visit.
#2 of 12 months in Baden-Baden · #301 of 1383 destinations to visit in September · comfort 88/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Baden-Baden in September
Baden-Baden's forum is candid that September weather here is genuinely unpredictable — bright 25°C sunshine one stretch, rain and below 10°C the next, with no single year a reliable guide to the next. Regulars' standard advice is to pack layers and rain protection regardless of forecast, since the region rarely holds one pattern for more than a couple of days.
Add your own note from Baden-Baden's card on the map.
Baden-Baden climate normals — September
| Daytime high | 22°C / 72°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 51°F | |
| Feels like (high) | 22°C / 72°F | |
| Rainfall | 86 mm / 3.4 in | 🌧 rainy |
| Rainy days | 9 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 12°C / 53°F | |
| Sunshine | 9.1 h/day | |
| Daylight | 12.6 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 43 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Baden-Baden 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.
BusyGrosse Woche racing, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Baden-Baden'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 weatherBaden-Baden's best weather comes in June, August and September — separate windows, not one continuous season.
September includes Grosse Woche racing.
Best weatherFair weatherToughest weather
What's on in Baden-Baden in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Festival
Grosse Woche racing
29 Aug – 6 SepMajor festivalCrowdedBook earlyGermany's biggest race meeting, five days at Iffezheim ending with the Grosser Preis von Baden. The spa hotels fill with people who came to dress up rather than to take the water. Source ↗
Nearby, and something's on
Within 300 km of Baden-Baden — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Baden-Baden?
Baden-Baden in September — FAQ
- Is September a good time to visit Baden-Baden?
- September in Baden-Baden: nice, rainy, with clean air — one of the best months to visit. It ranks #2 of 12 months for Baden-Baden on SeasonMap's comfort score (88/100).
- What is the weather like in Baden-Baden in September?
- In September, Baden-Baden averages a daily high of 22.4°C and a low of 10.5°C, with about 86.4 mm of rain over roughly 9.1 rainy days.
- What is the air quality in Baden-Baden in September?
- Baden-Baden has a mean US Air Quality Index of about 43 in September.
Other months in Baden-Baden
Compare Baden-Baden in September
Warmer or cooler than Baden-Baden in September
Similar destinations in Central Europe — September
Within 300 km: Strasbourg's Cathedral summer light show around 1 Jul – 5 Sep, and Heidelberg's September castle illumination on 5 Sep.