September weather forecastAssel, Netherlands
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Assel, Netherlands, with an average temperature fluctuating between 18.8°C (65.8°F) and 10.9°C (51.6°F).Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's pleasant 22.3°C (72.1°F) to a refreshing 18.8°C (65.8°F). Nightly temperatures in Assel drop to an average low of 10.9°C (51.6°F) in September.Humidity
The average relative humidity in September is 82%.Rainfall
In Assel, in September, it is raining for 16.3 days, with typically 40mm (1.57") of accumulated precipitation. Throughout the year, there are 200.7 rainfall days, and 547mm (21.54") of precipitation is accumulated.Snowfall
In Assel, snow does not fall in April through November.Daylight
The average length of the day in September is 12h and 39min.On the first day of September in Assel, sunrise is at 06:49 and sunset at 20:23. On the last day of the month, sunrise is at 07:36 and sunset at 19:16 CEST.
Sunshine
In September, the average sunshine in Assel, Netherlands, is 7.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Assel, Netherlands
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is August (22.3°C).
The month with the lowest average high temperature is January (4.5°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).
Average pressure in September
Assel, Netherlands
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1011.8mbar).
Average wind speed in September
Assel, Netherlands
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is December (18km/h).
The calmest months (with the lowest average wind speed) are July and August (11.8km/h).
Average humidity in September
Assel, Netherlands
- Average humidity in September: 82%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Assel, Netherlands
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is July (59mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Assel, Netherlands
- Average rainfall days in September: 16.3 days
The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is April (13.9 days).
Average snowfall in September
Assel, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is December (28mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Assel, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.6 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
Assel, Netherlands
- Average daylight in September: 12h and 42min
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 18min
The months with the most sunshine are July and August (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Assel, Netherlands
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is April (13.9 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in September
Assel, Netherlands
- Average UV index in September: 4
The month with the highest UV index is June (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Assel, Netherlands
- Average cloud cover in September: 46
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in September
Assel, Netherlands
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (9km).
The month with the lowest visibility is September (8km).
