Climate averages 1991–2020
Zaanstad weather
in August.
A mild, wet month: the warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Zaanstad: daytime highs average 20.4°C and nights cool to about 15.3°C. By daytime temperature it is the warmest month of the year.
Expect about 90 mm of rain on roughly 13 days, which makes August a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 42 min on an average August day.
The nearest other city in this atlas is Zaandam (2 km away). In August its highs average 20.6°C, about as warm as Zaanstad, with 90 mm of rain.
Among the 44 cities listed in the Netherlands, Zaanstad ranks joint 41st of 44 for the warmest August highs and joint 37th of 44 for the driest August (rainfall, lowest first). The mean August high of those 44 cities is 21.5°C; Zaanstad is 1.2°C cooler than that mean.
From August to September, average highs fall by 2.7°C to 17.7°C, and monthly rainfall falls from 90 mm to 84 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
Zaanstad climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.8°C2.4°C | 2.4°C | 69 | 13.2 | 8.38 h |
| February | 6.2°C2.2°C | 2.2°C | 54 | 11.0 | 9.910 h |
| March | 8.7°C3.8°C | 3.8°C | 52 | 10.7 | 11.812 h |
| April | 12.2°C6.3°C | 6.3°C | 44 | 10.1 | 13.914 h |
| May | 15.4°C9.8°C | 9.8°C | 58 | 10.4 | 15.716 h |
| June | 18.0°C12.6°C | 12.6°C | 63 | 11.3 | 16.717 h |
| July | 20.2°C15.0°C | 15.0°C | 79 | 13.0 | 16.316 h |
| August, selected | 20.4°C15.3°C | 15.3°C | 90 | 13.3 | 14.715 h |
| September | 17.7°C13.1°C | 13.1°C | 84 | 12.7 | 12.713 h |
| October | 13.9°C9.7°C | 9.7°C | 88 | 14.1 | 10.711 h |
| November | 9.6°C6.2°C | 6.2°C | 77 | 14.8 | 8.89 h |
| December | 6.6°C3.4°C | 3.4°C | 79 | 14.2 | 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
- Zaandam in AugustThe Netherlands · 2 kmHigh 20.6°C · Low 15.2°C · 90 mm rain
- Amsterdam in AugustThe Netherlands · 10 kmHigh 20.8°C · Low 14.8°C · 81 mm rain
- Purmerend in AugustThe Netherlands · 11 kmHigh 20.8°C · Low 14.9°C · 79 mm rain
- Haarlem in AugustThe Netherlands · 14 kmHigh 20.3°C · Low 15.4°C · 90 mm rain
- Amstelveen in AugustThe Netherlands · 17 kmHigh 21.1°C · Low 14.7°C · 90 mm rain
- Hoofddorp in AugustThe Netherlands · 19 kmHigh 20.7°C · Low 15.2°C · 90 mm rain
- Alkmaar in AugustThe Netherlands · 20 kmHigh 19.9°C · Low 15.7°C · 84 mm rain
- Almere Stad in AugustThe Netherlands · 29 kmHigh 21.5°C · Low 14.5°C · 81 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 Zaanstad) is explained once on the Zaanstad year overview and on the Sources, method and limits page.
Haarlem and Zaandam lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.