Climate averages 1991–2020
Alphen aan den Rijn weather
in October.
A cool, moderately wet month: the 6th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a cool month in Alphen aan den Rijn: daytime highs average 14.2°C and nights cool to about 8.8°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 84 mm of rain on roughly 14 days, which makes October a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 42 min on an average October day.
The nearest other city in this atlas is Leiden (12 km away). In October its highs average 14.1°C, about as warm as Alphen aan den Rijn, with 93 mm of rain.
Among the 44 cities listed in the Netherlands, Alphen aan den Rijn ranks joint 18th of 44 for the warmest October highs and joint 37th of 44 for the driest October (rainfall, lowest first). The mean October high of those 44 cities is 14.1°C; Alphen aan den Rijn is 0.1°C warmer than that mean.
From October to November, average highs fall by 4.6°C to 9.6°C, and monthly rainfall falls from 84 mm to 75 mm.
The annual picture
October 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
Alphen aan den Rijn climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.9°C1.7°C | 1.7°C | 69 | 13.3 | 8.38 h |
| February | 6.6°C1.5°C | 1.5°C | 56 | 11.1 | 9.910 h |
| March | 9.6°C3.2°C | 3.2°C | 55 | 11.2 | 11.812 h |
| April | 13.3°C5.6°C | 5.6°C | 49 | 10.7 | 13.914 h |
| May | 16.7°C9.2°C | 9.2°C | 62 | 10.9 | 15.716 h |
| June | 19.3°C12.1°C | 12.1°C | 66 | 11.7 | 16.717 h |
| July | 21.4°C14.4°C | 14.4°C | 83 | 13.4 | 16.216 h |
| August | 21.3°C14.5°C | 14.5°C | 90 | 13.3 | 14.715 h |
| September | 18.3°C12.1°C | 12.1°C | 81 | 12.8 | 12.713 h |
| October, selected | 14.2°C8.8°C | 8.8°C | 84 | 13.7 | 10.711 h |
| November | 9.6°C5.3°C | 5.3°C | 75 | 14.1 | 8.99 h |
| December | 6.4°C2.5°C | 2.5°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
October in nearby cities
- Leiden in OctoberThe Netherlands · 12 kmHigh 14.1°C · Low 9.6°C · 93 mm rain
- Gouda in OctoberThe Netherlands · 13 kmHigh 14.2°C · Low 8.7°C · 65 mm rain
- Zoetermeer in OctoberThe Netherlands · 14 kmHigh 14.3°C · Low 9.1°C · 68 mm rain
- Hoofddorp in OctoberThe Netherlands · 19 kmHigh 14.0°C · Low 9.6°C · 84 mm rain
- Amstelveen in OctoberThe Netherlands · 24 kmHigh 14.0°C · Low 9.0°C · 84 mm rain
- Delft in OctoberThe Netherlands · 25 kmHigh 14.3°C · Low 9.2°C · 77 mm rain
- The Hague in OctoberThe Netherlands · 25 kmHigh 14.2°C · Low 9.8°C · 77 mm rain
- Rotterdam in OctoberThe Netherlands · 26 kmHigh 14.3°C · Low 8.7°C · 68 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 Alphen aan den Rijn) is explained once on the Alphen aan den Rijn year overview and on the Sources, method and limits page.
Hoofddorp and Amstelveen lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.