September weather forecastAalten, Netherlands
September
Weather in September
September, the first month of the autumn in Aalten, is still a refreshing month, with temperature in the range of an average high of 18.7°C (65.7°F) and an average low of 11°C (51.8°F).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a refreshing 18.7°C (65.7°F) from an agreeable 22.8°C (73°F). During September, Aalten's temperature falls to a steady low-temperature average of 11°C (51.8°F).Humidity
The average relative humidity in September in Aalten is 80%.Rainfall
In Aalten, during September, the rain falls for 15 days and regularly aggregates up to 34mm (1.34") of precipitation. In Aalten, during the entire year, the rain falls for 187.7 days and collects up to 477mm (18.78") of precipitation.Snowfall
April through October are months without snowfall in Aalten, Netherlands.Daylight
The average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 06:46 and sunset at 20:20. On the last day of September, sunrise is at 07:33 and sunset at 19:13 CEST.
Sunshine
The average sunshine in September in Aalten is 7.8h.UV index
In Aalten, Netherlands, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Aalten, Netherlands
- Average high temperature in September: 18.7°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (0.6°C).
Average pressure in September
Aalten, Netherlands
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1012.4mbar).
Average wind speed in September
Aalten, Netherlands
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is December (17.8km/h).
The calmest month (with the lowest average wind speed) is July (11.6km/h).
Average humidity in September
Aalten, Netherlands
- Average humidity in September: 80%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Aalten, Netherlands
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is July (54mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Aalten, Netherlands
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is April (12.8 days).
Average snowfall in September
Aalten, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (36mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Aalten, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5 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
Aalten, Netherlands
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Aalten, Netherlands
- Average sunshine days in September: 11.6 days
The month with the most sunshine days is April (14.8 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in September
Aalten, Netherlands
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Aalten, Netherlands
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Aalten, Netherlands
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, October and November (9km).
The months with the lowest visibility are September and December (8km).
