Climate averages 1991–2020
Groningen weather
in August.
A mild, moderately wet month: one of the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Groningen: daytime highs average 20.9°C and nights cool to about 14.1°C. By daytime temperature it is one of the warmest months of the year.
Expect about 83 mm of rain on roughly 14 days, which makes August a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 47 min on an average August day.
The nearest other city in this atlas is Leeuwarden (50 km away). In August its highs average 20.4°C, 0.6°C cooler than Groningen, with 84 mm of rain.
Among the 44 cities listed in the Netherlands, Groningen ranks 34th of 44 for the warmest August highs and 34th of 44 for the driest August (rainfall, lowest first). The mean August high of those 44 cities is 21.5°C; Groningen is 0.6°C cooler than that mean.
From August to September, average highs fall by 3.2°C to 17.8°C, and monthly rainfall falls from 83 mm to 68 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
Groningen climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.9°C0.8°C | 0.8°C | 63 | 12.6 | 8.18 h |
| February | 5.7°C0.7°C | 0.7°C | 49 | 10.5 | 9.810 h |
| March | 8.7°C2.3°C | 2.3°C | 49 | 10.9 | 11.812 h |
| April | 12.7°C5.0°C | 5.0°C | 48 | 10.7 | 13.914 h |
| May | 16.2°C8.7°C | 8.7°C | 60 | 11.8 | 15.816 h |
| June | 18.8°C11.6°C | 11.6°C | 74 | 12.2 | 16.917 h |
| July | 20.9°C14.0°C | 14.0°C | 87 | 14.3 | 16.416 h |
| August, selected | 20.9°C14.1°C | 14.1°C | 83 | 14.0 | 14.815 h |
| September | 17.8°C11.7°C | 11.7°C | 68 | 12.1 | 12.713 h |
| October | 13.4°C8.1°C | 8.1°C | 63 | 12.5 | 10.611 h |
| November | 8.7°C4.5°C | 4.5°C | 57 | 12.2 | 8.79 h |
| December | 5.6°C1.7°C | 1.7°C | 63 | 12.4 | 7.68 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
- Leeuwarden in AugustThe Netherlands · 50 kmHigh 20.4°C · Low 14.8°C · 84 mm rain
- Zwolle in AugustThe Netherlands · 85 kmHigh 21.6°C · Low 14.0°C · 81 mm rain
- Almelo in AugustThe Netherlands · 96 kmHigh 22.1°C · Low 13.8°C · 79 mm rain
- Hengelo in AugustThe Netherlands · 107 kmHigh 22.2°C · Low 14.0°C · 79 mm rain
- Lelystad in AugustThe Netherlands · 108 kmHigh 21.2°C · Low 14.8°C · 90 mm rain
- Wilhelmshaven in AugustGermany · 108 kmHigh 21.3°C · Low 14.3°C · 82 mm rain
- Oldenburg in AugustGermany · 110 kmHigh 21.8°C · Low 14.2°C · 82 mm rain
- Deventer in AugustThe Netherlands · 111 kmHigh 21.9°C · Low 14.0°C · 77 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 Groningen) is explained once on the Groningen year overview and on the Sources, method and limits page.