Climate averages 1991–2020
Alkmaar weather
in October.
A cool, wet month: the 6th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a cool month in Alkmaar: daytime highs average 13.8°C and nights cool to about 10.4°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 91 mm of rain on roughly 14 days, which makes October a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 40 min on an average October day.
The nearest other city in this atlas is Purmerend (20 km away). In October its highs average 13.9°C, about as warm as Alkmaar, with 69 mm of rain.
Among the 44 cities listed in the Netherlands, Alkmaar ranks joint 40th of 44 for the warmest October highs and 43rd of 44 for the driest October (rainfall, lowest first). The mean October high of those 44 cities is 14.1°C; Alkmaar is 0.3°C cooler than that mean.
From October to November, average highs fall by 4.0°C to 9.8°C, and monthly rainfall falls from 91 mm to 79 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
Alkmaar climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.9°C2.9°C | 2.9°C | 68 | 13.4 | 8.28 h |
| February | 6.0°C2.7°C | 2.7°C | 53 | 10.9 | 9.810 h |
| March | 8.2°C4.2°C | 4.2°C | 49 | 10.5 | 11.812 h |
| April | 11.4°C6.6°C | 6.6°C | 37 | 8.8 | 13.914 h |
| May | 14.6°C10.0°C | 10.0°C | 50 | 9.6 | 15.716 h |
| June | 17.2°C12.9°C | 12.9°C | 55 | 10.3 | 16.817 h |
| July | 19.5°C15.3°C | 15.3°C | 67 | 11.8 | 16.316 h |
| August | 19.9°C15.7°C | 15.7°C | 84 | 12.8 | 14.715 h |
| September | 17.4°C13.7°C | 13.7°C | 82 | 12.6 | 12.713 h |
| October, selected | 13.8°C10.4°C | 10.4°C | 91 | 14.4 | 10.711 h |
| November | 9.8°C6.8°C | 6.8°C | 79 | 15.5 | 8.89 h |
| December | 6.9°C4.0°C | 4.0°C | 79 | 14.5 | 7.78 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
- Purmerend in OctoberThe Netherlands · 20 kmHigh 13.9°C · Low 9.2°C · 69 mm rain
- Zaanstad in OctoberThe Netherlands · 20 kmHigh 13.9°C · Low 9.7°C · 88 mm rain
- Zaandam in OctoberThe Netherlands · 22 kmHigh 14.0°C · Low 9.5°C · 88 mm rain
- Haarlem in OctoberThe Netherlands · 29 kmHigh 13.9°C · Low 9.9°C · 88 mm rain
- Amsterdam in OctoberThe Netherlands · 30 kmHigh 13.9°C · Low 9.1°C · 66 mm rain
- Hoofddorp in OctoberThe Netherlands · 37 kmHigh 14.0°C · Low 9.6°C · 84 mm rain
- Amstelveen in OctoberThe Netherlands · 38 kmHigh 14.0°C · Low 9.0°C · 84 mm rain
- Almere Stad in OctoberThe Netherlands · 43 kmHigh 14.1°C · Low 8.7°C · 65 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 Alkmaar) is explained once on the Alkmaar year overview and on the Sources, method and limits page.