Climate averages 1991–2020
Amstelveen weather
in September.
A mild, moderately wet month: the 4th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Amstelveen: daytime highs average 18.1°C and nights cool to about 12.3°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 81 mm of rain on roughly 13 days, which makes September a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 43 min on an average September day.
The nearest other city in this atlas is Amsterdam (8 km away). In September its highs average 17.9°C, about as warm as Amstelveen, with 69 mm of rain.
Among the 44 cities listed in the Netherlands, Amstelveen ranks joint 32nd of 44 for the warmest September highs and joint 37th of 44 for the driest September (rainfall, lowest first). The mean September high of those 44 cities is 18.4°C; Amstelveen is 0.3°C cooler than that mean.
From September to October, average highs fall by 4.1°C to 14.0°C, and monthly rainfall rises from 81 mm to 84 mm.
The annual picture
September 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
Amstelveen climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.7°C1.8°C | 1.8°C | 69 | 13.3 | 8.38 h |
| February | 6.4°C1.6°C | 1.6°C | 56 | 11.1 | 9.910 h |
| March | 9.3°C3.3°C | 3.3°C | 55 | 11.2 | 11.812 h |
| April | 13.0°C5.8°C | 5.8°C | 49 | 10.7 | 13.914 h |
| May | 16.4°C9.4°C | 9.4°C | 62 | 10.9 | 15.716 h |
| June | 19.0°C12.3°C | 12.3°C | 66 | 11.7 | 16.717 h |
| July | 21.1°C14.6°C | 14.6°C | 83 | 13.4 | 16.316 h |
| August | 21.1°C14.7°C | 14.7°C | 90 | 13.3 | 14.715 h |
| September, selected | 18.1°C12.3°C | 12.3°C | 81 | 12.8 | 12.713 h |
| October | 14.0°C9.0°C | 9.0°C | 84 | 13.7 | 10.711 h |
| November | 9.5°C5.4°C | 5.4°C | 75 | 14.1 | 8.89 h |
| December | 6.3°C2.6°C | 2.6°C | 79 | 14.0 | 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
September in nearby cities
- Amsterdam in SeptemberThe Netherlands · 8 kmHigh 17.9°C · Low 12.5°C · 69 mm rain
- Hoofddorp in SeptemberThe Netherlands · 12 kmHigh 17.9°C · Low 13.0°C · 81 mm rain
- Zaandam in SeptemberThe Netherlands · 16 kmHigh 17.9°C · Low 12.9°C · 84 mm rain
- Zaanstad in SeptemberThe Netherlands · 17 kmHigh 17.7°C · Low 13.1°C · 84 mm rain
- Haarlem in SeptemberThe Netherlands · 18 kmHigh 17.7°C · Low 13.2°C · 84 mm rain
- Hilversum in SeptemberThe Netherlands · 23 kmHigh 18.3°C · Low 11.8°C · 67 mm rain
- Purmerend in SeptemberThe Netherlands · 24 kmHigh 17.9°C · Low 12.6°C · 69 mm rain
- Alphen aan den Rijn in SeptemberThe Netherlands · 24 kmHigh 18.3°C · Low 12.1°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 Amstelveen) is explained once on the Amstelveen year overview and on the Sources, method and limits page.
Hoofddorp and Alphen aan den Rijn lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.