Climate averages 1991–2020
Wiesbaden weather
in September.
A mild, moderately wet month: the 4th warmest and the joint 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Wiesbaden: daytime highs average 19.8°C and nights cool to about 11.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 54 mm of rain on roughly 9 days, which makes September a moderately wet month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 40 min on an average September day.
The nearest other city in this atlas is Mainz (12 km away). In September its highs average 20.0°C, about as warm as Wiesbaden, with 54 mm of rain.
Among the 120 cities listed in Germany, Wiesbaden ranks joint 11th of 120 for the warmest September highs and joint 13th of 120 for the driest September (rainfall, lowest first). The mean September high of those 120 cities is 18.8°C; Wiesbaden is 1.0°C warmer than that mean.
From September to October, average highs fall by 5.4°C to 14.4°C, and monthly rainfall rises from 54 mm to 55 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
Wiesbaden climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.6°C-0.1°C | -0.1°C | 49 | 11.0 | 8.69 h |
| February | 6.1°C0.0°C | 0.0°C | 43 | 9.2 | 10.010 h |
| March | 10.2°C2.4°C | 2.4°C | 49 | 11.2 | 11.812 h |
| April | 14.9°C5.5°C | 5.5°C | 45 | 9.8 | 13.714 h |
| May | 18.7°C9.8°C | 9.8°C | 62 | 11.0 | 15.415 h |
| June | 22.1°C13.2°C | 13.2°C | 60 | 10.5 | 16.316 h |
| July | 24.3°C15.4°C | 15.4°C | 64 | 11.6 | 15.916 h |
| August | 24.2°C15.2°C | 15.2°C | 58 | 10.6 | 14.514 h |
| September, selected | 19.8°C11.8°C | 11.8°C | 54 | 9.3 | 12.713 h |
| October | 14.4°C7.8°C | 7.8°C | 55 | 10.8 | 10.811 h |
| November | 8.7°C3.9°C | 3.9°C | 54 | 11.5 | 9.19 h |
| December | 5.2°C0.9°C | 0.9°C | 62 | 12.8 | 8.28 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
- Mainz in SeptemberGermany · 12 kmHigh 20.0°C · Low 11.4°C · 54 mm rain
- Frankfurt am Main in SeptemberGermany · 32 kmHigh 19.9°C · Low 11.3°C · 52 mm rain
- Offenbach in SeptemberGermany · 37 kmHigh 19.9°C · Low 11.3°C · 52 mm rain
- Darmstadt in SeptemberGermany · 38 kmHigh 19.8°C · Low 11.4°C · 61 mm rain
- Hanau am Main in SeptemberGermany · 48 kmHigh 19.8°C · Low 11.3°C · 58 mm rain
- Worms in SeptemberGermany · 51 kmHigh 20.2°C · Low 11.5°C · 51 mm rain
- Koblenz in SeptemberGermany · 56 kmHigh 19.4°C · Low 11.4°C · 55 mm rain
- Gießen in SeptemberGermany · 64 kmHigh 18.9°C · Low 10.8°C · 55 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 Wiesbaden) is explained once on the Wiesbaden year overview and on the Sources, method and limits page.
Mainz lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.