Climate averages 1991–2020
Potsdam weather
in September.
A mild, moderately wet month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Potsdam: daytime highs average 19.0°C and nights cool to about 11.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 51 mm of rain on roughly 9 days, which makes September a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 44 min on an average September day.
The nearest other city in this atlas is Berlin (27 km away). In September its highs average 19.1°C, about as warm as Potsdam, with 51 mm of rain.
Among the 120 cities listed in Germany, Potsdam ranks joint 46th of 120 for the warmest September highs and joint 2nd of 120 for the driest September (rainfall, lowest first). The mean September high of those 120 cities is 18.8°C; Potsdam is 0.2°C warmer than that mean.
From September to October, average highs fall by 5.5°C to 13.5°C, and monthly rainfall falls from 51 mm to 46 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
Potsdam climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.2°C-1.2°C | -1.2°C | 49 | 11.8 | 8.38 h |
| February | 4.8°C-0.7°C | -0.7°C | 36 | 9.2 | 9.910 h |
| March | 8.5°C1.4°C | 1.4°C | 46 | 11.1 | 11.812 h |
| April | 14.1°C5.1°C | 5.1°C | 35 | 8.8 | 13.914 h |
| May | 18.6°C9.8°C | 9.8°C | 56 | 10.1 | 15.716 h |
| June | 21.8°C13.3°C | 13.3°C | 57 | 10.5 | 16.717 h |
| July | 23.7°C15.5°C | 15.5°C | 77 | 11.5 | 16.316 h |
| August | 23.7°C15.4°C | 15.4°C | 59 | 10.4 | 14.715 h |
| September, selected | 19.0°C11.8°C | 11.8°C | 51 | 9.1 | 12.713 h |
| October | 13.5°C7.6°C | 7.6°C | 46 | 9.5 | 10.711 h |
| November | 7.7°C3.3°C | 3.3°C | 42 | 9.9 | 8.89 h |
| December | 4.1°C0.3°C | 0.3°C | 46 | 11.4 | 7.88 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
- Berlin in SeptemberGermany · 27 kmHigh 19.1°C · Low 11.3°C · 51 mm rain
- Magdeburg in SeptemberGermany · 102 kmHigh 19.2°C · Low 11.4°C · 55 mm rain
- Cottbus in SeptemberGermany · 112 kmHigh 19.1°C · Low 11.7°C · 52 mm rain
- Halle (Saale) in SeptemberGermany · 126 kmHigh 19.2°C · Low 11.4°C · 50 mm rain
- Leipzig in SeptemberGermany · 127 kmHigh 19.3°C · Low 11.3°C · 56 mm rain
- Gorzów Wielkopolski in SeptemberPoland · 151 kmHigh 18.7°C · Low 11.1°C · 50 mm rain
- Szczecin in SeptemberPoland · 152 kmHigh 18.3°C · Low 11.2°C · 54 mm rain
- Wolfsburg in SeptemberGermany · 155 kmHigh 18.7°C · Low 11.5°C · 54 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 Potsdam) is explained once on the Potsdam year overview and on the Sources, method and limits page.