Climate averages 1991–2020
Arnhem 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 Arnhem: daytime highs average 22.0°C and nights cool to about 14.3°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 76 mm of rain on roughly 13 days, which makes August a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 40 min on an average August day.
The nearest other city in this atlas is Nijmegen (16 km away). In August its highs average 22.1°C, about as warm as Arnhem, with 76 mm of rain.
Among the 44 cities listed in the Netherlands, Arnhem ranks joint 14th of 44 for the warmest August highs and joint 2nd of 44 for the driest August (rainfall, lowest first). The mean August high of those 44 cities is 21.5°C; Arnhem is 0.5°C warmer than that mean.
From August to September, average highs fall by 3.4°C to 18.6°C, and monthly rainfall falls from 76 mm to 61 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
Arnhem climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.4°C1.0°C | 1.0°C | 65 | 12.8 | 8.38 h |
| February | 6.4°C1.0°C | 1.0°C | 56 | 11.0 | 9.910 h |
| March | 9.8°C2.7°C | 2.7°C | 56 | 11.3 | 11.812 h |
| April | 14.0°C5.3°C | 5.3°C | 47 | 10.3 | 13.914 h |
| May | 17.6°C9.1°C | 9.1°C | 59 | 11.5 | 15.616 h |
| June | 20.3°C12.1°C | 12.1°C | 65 | 11.7 | 16.617 h |
| July | 22.3°C14.4°C | 14.4°C | 77 | 13.3 | 16.216 h |
| August, selected | 22.0°C14.3°C | 14.3°C | 76 | 12.6 | 14.715 h |
| September | 18.6°C11.7°C | 11.7°C | 61 | 10.9 | 12.713 h |
| October | 14.1°C8.4°C | 8.4°C | 63 | 11.4 | 10.711 h |
| November | 9.2°C4.7°C | 4.7°C | 61 | 12.1 | 8.99 h |
| December | 5.9°C1.9°C | 1.9°C | 71 | 12.8 | 7.98 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
- Nijmegen in AugustThe Netherlands · 16 kmHigh 22.1°C · Low 14.5°C · 76 mm rain
- Apeldoorn in AugustThe Netherlands · 26 kmHigh 22.0°C · Low 14.0°C · 80 mm rain
- Deventer in AugustThe Netherlands · 35 kmHigh 21.9°C · Low 14.0°C · 77 mm rain
- Oss in AugustThe Netherlands · 36 kmHigh 22.0°C · Low 14.4°C · 78 mm rain
- Amersfoort in AugustThe Netherlands · 41 kmHigh 21.8°C · Low 14.2°C · 80 mm rain
- Bocholt in AugustGermany · 51 kmHigh 22.4°C · Low 14.6°C · 80 mm rain
- 's-Hertogenbosch in AugustThe Netherlands · 52 kmHigh 22.2°C · Low 14.4°C · 76 mm rain
- Utrecht in AugustThe Netherlands · 55 kmHigh 21.5°C · Low 14.2°C · 78 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 Arnhem) is explained once on the Arnhem year overview and on the Sources, method and limits page.