Climate averages 1991–2020
Hannover weather
in April.
A cool, moderately wet month: the 6th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Hannover: daytime highs average 13.9°C and nights cool to about 4.8°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 49 mm of rain on roughly 10 days, which makes April a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 53 min on an average April day.
The nearest other city in this atlas is Hildesheim (29 km away). In April its highs average 13.5°C, about as warm as Hannover, with 47 mm of rain.
Among the 120 cities listed in Germany, Hannover ranks joint 70th of 120 for the warmest April highs and joint 48th of 120 for the driest April (rainfall, lowest first). The mean April high of those 120 cities is 14.0°C; Hannover is 0.1°C cooler than that mean.
From April to May, average highs rise by 3.9°C to 17.8°C, and monthly rainfall rises from 49 mm to 60 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Hildesheim in AprilGermany · 29 kmHigh 13.5°C · Low 4.4°C · 47 mm rain
- Celle in AprilGermany · 37 kmHigh 14.0°C · Low 5.1°C · 44 mm rain
- Salzgitter in AprilGermany · 52 kmHigh 13.5°C · Low 4.5°C · 44 mm rain
- Braunschweig in AprilGermany · 55 kmHigh 13.7°C · Low 4.7°C · 44 mm rain
- Minden in AprilGermany · 56 kmHigh 13.7°C · Low 5.0°C · 51 mm rain
- Wolfsburg in AprilGermany · 71 kmHigh 13.9°C · Low 5.0°C · 41 mm rain
- Detmold in AprilGermany · 76 kmHigh 13.6°C · Low 5.0°C · 53 mm rain
- Bielefeld in AprilGermany · 90 kmHigh 13.6°C · Low 4.7°C · 52 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.