Climate averages 1991–2020
Freiburg weather
in September.
A mild, moderately wet month: the 4th warmest and the joint 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Freiburg: daytime highs average 20.0°C and nights cool to about 11.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 77 mm of rain on roughly 11 days, which makes September a moderately wet month (the joint 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 38 min on an average September day.
The nearest other city in this atlas is Mulhouse (48 km away). In September its highs average 19.7°C, about as warm as Freiburg, with 74 mm of rain.
Among the 120 cities listed in Germany, Freiburg ranks joint 6th of 120 for the warmest September highs and 108th of 120 for the driest September (rainfall, lowest first). The mean September high of those 120 cities is 18.8°C; Freiburg is 1.2°C warmer than that mean.
From September to October, average highs fall by 4.6°C to 15.4°C, and monthly rainfall rises from 77 mm to 85 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Freiburg climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.3°C-1.2°C | -1.2°C | 91 | 13.3 | 8.99 h |
| February | 6.5°C-1.1°C | -1.1°C | 77 | 11.5 | 10.210 h |
| March | 10.7°C2.1°C | 2.1°C | 83 | 13.3 | 11.912 h |
| April | 15.1°C5.6°C | 5.6°C | 74 | 13.1 | 13.614 h |
| May | 18.9°C9.9°C | 9.9°C | 105 | 15.4 | 15.115 h |
| June | 22.4°C13.5°C | 13.5°C | 89 | 14.2 | 16.016 h |
| July | 24.4°C15.5°C | 15.5°C | 89 | 13.5 | 15.616 h |
| August | 24.4°C15.6°C | 15.6°C | 81 | 12.3 | 14.314 h |
| September, selected | 20.0°C11.8°C | 11.8°C | 77 | 11.3 | 12.613 h |
| October | 15.4°C8.0°C | 8.0°C | 85 | 12.2 | 10.911 h |
| November | 9.5°C3.2°C | 3.2°C | 89 | 12.4 | 9.39 h |
| December | 5.8°C0.2°C | 0.2°C | 108 | 14.4 | 8.58 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Mulhouse in SeptemberFrance · 48 kmHigh 19.7°C · Low 11.2°C · 74 mm rain
- Villingen-Schwenningen in SeptemberGermany · 48 kmHigh 16.9°C · Low 8.9°C · 93 mm rain
- Basel in SeptemberSwitzerland · 53 kmHigh 20.1°C · Low 10.8°C · 95 mm rain
- Strasbourg in SeptemberFrance · 66 kmHigh 20.1°C · Low 11.6°C · 70 mm rain
- Winterthur in SeptemberSwitzerland · 85 kmHigh 18.7°C · Low 10.8°C · 91 mm rain
- Zürich in SeptemberSwitzerland · 87 kmHigh 18.9°C · Low 11.2°C · 123 mm rain
- Konstanz in SeptemberGermany · 106 kmHigh 18.8°C · Low 12.9°C · 94 mm rain
- Tübingen in SeptemberGermany · 106 kmHigh 19.2°C · Low 10.4°C · 63 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Freiburg) is explained once on the Freiburg year overview and on the Sources, method and limits page.