Climate averages 1991–2020
Hannover weather
in August.
A warm, moderately wet month: the 2nd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Hannover: daytime highs average 22.8°C and nights cool to about 14.5°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 72 mm of rain on roughly 12 days, which makes August a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 42 min on an average August day.
The nearest other city in this atlas is Hildesheim (29 km away). In August its highs average 22.4°C, about as warm as Hannover, with 70 mm of rain.
Among the 120 cities listed in Germany, Hannover ranks joint 56th of 120 for the warmest August highs and joint 44th of 120 for the driest August (rainfall, lowest first). The mean August high of those 120 cities is 22.9°C; Hannover is 0.1°C cooler than that mean.
From August to September, average highs fall by 4.0°C to 18.7°C, and monthly rainfall falls from 72 mm to 59 mm.
The annual picture
August 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
Hannover climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.1°C-0.3°C | -0.3°C | 60 | 12.5 | 8.38 h |
| February | 5.4°C-0.2°C | -0.2°C | 46 | 10.7 | 9.910 h |
| March | 9.0°C1.6°C | 1.6°C | 55 | 11.9 | 11.812 h |
| April | 13.9°C4.8°C | 4.8°C | 49 | 10.3 | 13.914 h |
| May | 17.8°C8.9°C | 8.9°C | 60 | 11.1 | 15.716 h |
| June | 20.8°C12.2°C | 12.2°C | 65 | 11.4 | 16.717 h |
| July | 23.0°C14.6°C | 14.6°C | 78 | 13.0 | 16.316 h |
| August, selected | 22.8°C14.5°C | 14.5°C | 72 | 12.3 | 14.715 h |
| September | 18.7°C11.3°C | 11.3°C | 59 | 10.6 | 12.713 h |
| October | 13.6°C7.5°C | 7.5°C | 61 | 11.8 | 10.711 h |
| November | 8.2°C3.7°C | 3.7°C | 54 | 11.0 | 8.89 h |
| December | 4.8°C0.8°C | 0.8°C | 60 | 12.5 | 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
August in nearby cities
- Hildesheim in AugustGermany · 29 kmHigh 22.4°C · Low 14.2°C · 70 mm rain
- Celle in AugustGermany · 37 kmHigh 22.9°C · Low 14.7°C · 67 mm rain
- Salzgitter in AugustGermany · 52 kmHigh 22.5°C · Low 14.4°C · 65 mm rain
- Braunschweig in AugustGermany · 55 kmHigh 22.7°C · Low 14.5°C · 65 mm rain
- Minden in AugustGermany · 56 kmHigh 22.5°C · Low 14.5°C · 71 mm rain
- Wolfsburg in AugustGermany · 71 kmHigh 23.0°C · Low 14.9°C · 61 mm rain
- Detmold in AugustGermany · 76 kmHigh 22.4°C · Low 14.4°C · 74 mm rain
- Bielefeld in AugustGermany · 90 kmHigh 22.4°C · Low 14.1°C · 75 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 Hannover) is explained once on the Hannover year overview and on the Sources, method and limits page.