Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September is marked by a minor decrease in temperature, transitioning from an agreeable 21.6°C (70.9°F) in August to a comfortable 18.2°C (64.8°F). Throughout September, an average nighttime temperature of 12.5°C (54.5°F) is experienced in Diemen, Netherlands.Humidity
In September, the average relative humidity in Diemen is 80%.Rainfall
In Diemen, in September, during 15.7 rainfall days, 45mm (1.77") of precipitation is typically accumulated. Throughout the year, there are 189.3 rainfall days, and 510mm (20.08") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 40min.On the first day of September, sunrise is at 06:52 and sunset at 20:27. On the last day of the month, sunrise is at 07:40 and sunset at 19:19 CEST.
Sunshine
In September, the average sunshine is 7.1h.UV index
In September, the average daily maximum UV index in Diemen, Netherlands, is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What is the temperature in September in Diemen?
What is the average humidity in September in Diemen?
How many days does it rain in September in Diemen?
When it does not snow in Diemen?
What is the average length of the day in September in Diemen?
When is the sunrise / sunset in September in Diemen?
How many hours of sunshine does Diemen have in September?
How high is the UV index in September in Diemen?
Average temperature in September
Diemen, Netherlands
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is August (21.6°C).
The month with the lowest average high temperature is January (5.3°C).
- Average low temperature in September: 12.5°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is February (2°C).
Average pressure in September
Diemen, Netherlands
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed in September
Diemen, Netherlands
- Average wind speed in September: 14km/h
The windiest month (with the highest average wind speed) is December (20.4km/h).
The calmest months (with the lowest average wind speed) are July and August (13.2km/h).
Average humidity in September
Diemen, Netherlands
- Average humidity in September: 80%
The month with the highest relative humidity is December (86%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Diemen, Netherlands
- Average rainfall in September: 45mm
The wettest month (with the highest rainfall) is August (55mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Diemen, Netherlands
- Average rainfall days in September: 15.7 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is April (12.2 days).
Average snowfall in September
Diemen, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Diemen, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Diemen, Netherlands
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 7h and 1min
The months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Diemen, Netherlands
- Average sunshine days in September: 11.1 days
The month with the most sunshine days is March (15.1 days).
The month with the least sunshine days is December (8 days).
Average UV index in September
Diemen, Netherlands
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Diemen, Netherlands
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Diemen, Netherlands
- Average visibility in September: 9km
The months with the highest visibility are April, June and August (10km).
The months with the lowest visibility are January, February, March, May, July, September, October, November and December (9km).
Diemen, Netherlands
Weather forecast for your location
2. Allow the app to use your location
