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NetherlandsThe weather in September in Alkmaar
It's pleasantly warm in September in Alkmaar with an average temperature of 20°C. Temperatures this month range from a low of 17°C to a high of 21°C. At night, you can expect temperatures between 11°C and 15°C.
Looking for great weather? September is a good time to be in Alkmaar. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Alkmaar, Netherlands. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 31°C in 2016, Alkmaar reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 11°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 3°C to a highest value of 19°C.
Rainfall amount
In September, there is an average of 85 mm of precipitation, spread over 11 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in September for Alkmaar
Click on any day in September to get detailed info about the usual weather on that day in Alkmaar. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Alkmaar | New York | |
|---|---|---|
| Average temperature | 20°C | 27°C |
| Max. temperature | 21°C | 31°C |
| Min. temperature | 11°C | -5°C |
| Total precipitation | 85 mm | 57 mm |
| Rainy days | 11 days | 9 days |
Start of September
The month of September starts in Alkmaar with mild temps, averaging around 21°C during the day and nights around 14°C.
Mid September
By mid-September, daytime temps drop to around 20°C, with nights around 14°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Alkmaar is around 19°C, while nighttime temps are about 12°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Alkmaar for all months and discover the best travel time
Curious about the weather in other parts of Netherlands? Check out the climate and weather for spots like Texel, Veluwe, Zeeland, or explore other destinations in Netherlands.
Temperature charts
These charts show the average temperatures in September in Alkmaar, Netherlands. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Alkmaar
Temperature in September in Alkmaar over the years
Precipitation charts
These charts show the average amount of precipitation in September in Alkmaar, Netherlands. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Alkmaar
Total precipitation in September in Alkmaar over the years
Daily UV index in September in Alkmaar
This chart shows the average daily UV index in September in Alkmaar, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Alkmaar
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Average weather in Alkmaar by month
Click on a month below to see detailed weather info for Alkmaar. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.