Climate averages 1991–2020
Hilversum weather
in September.
A mild, moderately wet month: the 4th warmest and the joint 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Hilversum: daytime highs average 18.3°C and nights cool to about 11.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 67 mm of rain on roughly 12 days, which makes September a moderately wet month (the joint 8th 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 Utrecht (15 km away). In September its highs average 18.3°C, about as warm as Hilversum, with 65 mm of rain.
Among the 44 cities listed in the Netherlands, Hilversum ranks joint 25th of 44 for the warmest September highs and joint 23rd of 44 for the driest September (rainfall, lowest first). The mean September high of those 44 cities is 18.4°C; Hilversum is 0.1°C cooler than that mean.
From September to October, average highs fall by 4.3°C to 14.0°C, and monthly rainfall falls from 67 mm to 65 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
Hilversum climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.6°C1.3°C | 1.3°C | 64 | 12.7 | 8.38 h |
| February | 6.5°C1.2°C | 1.2°C | 54 | 10.8 | 9.910 h |
| March | 9.6°C2.9°C | 2.9°C | 55 | 11.5 | 11.812 h |
| April | 13.5°C5.4°C | 5.4°C | 51 | 11.3 | 13.914 h |
| May | 17.1°C9.1°C | 9.1°C | 63 | 11.8 | 15.716 h |
| June | 19.6°C12.0°C | 12.0°C | 67 | 11.7 | 16.717 h |
| July | 21.7°C14.3°C | 14.3°C | 82 | 14.1 | 16.316 h |
| August | 21.5°C14.3°C | 14.3°C | 81 | 13.1 | 14.715 h |
| September, selected | 18.3°C11.8°C | 11.8°C | 67 | 11.9 | 12.713 h |
| October | 14.0°C8.5°C | 8.5°C | 65 | 12.0 | 10.711 h |
| November | 9.4°C4.9°C | 4.9°C | 61 | 12.3 | 8.89 h |
| December | 6.1°C2.1°C | 2.1°C | 70 | 13.1 | 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
- Utrecht in SeptemberThe Netherlands · 15 kmHigh 18.3°C · Low 11.7°C · 65 mm rain
- Amersfoort in SeptemberThe Netherlands · 16 kmHigh 18.4°C · Low 11.7°C · 65 mm rain
- Almere Stad in SeptemberThe Netherlands · 17 kmHigh 18.3°C · Low 12.0°C · 67 mm rain
- Amstelveen in SeptemberThe Netherlands · 23 kmHigh 18.1°C · Low 12.3°C · 81 mm rain
- Amsterdam in SeptemberThe Netherlands · 26 kmHigh 17.9°C · Low 12.5°C · 69 mm rain
- Zaandam in SeptemberThe Netherlands · 34 kmHigh 17.9°C · Low 12.9°C · 84 mm rain
- Hoofddorp in SeptemberThe Netherlands · 34 kmHigh 17.9°C · Low 13.0°C · 81 mm rain
- Purmerend in SeptemberThe Netherlands · 35 kmHigh 17.9°C · Low 12.6°C · 69 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 Hilversum) is explained once on the Hilversum year overview and on the Sources, method and limits page.
Almere Stad lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.