September weather forecastKollumerpomp, Netherlands
September
Weather in September
September, the first month of the autumn in Kollumerpomp, is still a refreshing month, with temperature in the range of an average low of 11.7°C (53.1°F) and an average high of 18°C (64.4°F).Temperature
With the onset of September, the average high-temperature subtly recedes from August's pleasant 21.3°C (70.3°F) to an enjoyable 18°C (64.4°F). During September, Kollumerpomp's temperature falls to a steady low-temperature average of 11.7°C (53.1°F).Humidity
The average relative humidity in September is 82%.Rainfall
In Kollumerpomp, in September, during 14.7 rainfall days, 30mm (1.18") of precipitation is typically accumulated. Throughout the year, in Kollumerpomp, there are 193.8 rainfall days, and 494mm (19.45") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Kollumerpomp, the average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 06:45 and sunset at 20:24. On the last day of the month, sunrise is at 07:36 and sunset at 19:14 CEST.
Sunshine
In September, the average sunshine is 7.1h.UV index
In Kollumerpomp, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kollumerpomp, Netherlands
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is August (21.3°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (1.3°C).
Average pressure in September
Kollumerpomp, Netherlands
- Average pressure in September: 1016.4mbar
The months with the highest atmospheric pressure are May and September (1016.4mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in September
Kollumerpomp, Netherlands
- Average wind speed in September: 15.1km/h
The windiest month (with the highest average wind speed) is December (21.7km/h).
The calmest month (with the lowest average wind speed) is July (14.3km/h).
Average humidity in September
Kollumerpomp, Netherlands
- Average humidity in September: 82%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is April (78%).
Average rainfall in September
Kollumerpomp, Netherlands
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is July (52mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in September
Kollumerpomp, Netherlands
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is April (13.8 days).
Average snowfall in September
Kollumerpomp, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (26mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Kollumerpomp, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.8 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
Kollumerpomp, Netherlands
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Kollumerpomp, Netherlands
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is December (8.5 days).
Average UV index in September
Kollumerpomp, Netherlands
- Average UV index in September: 4
The month with the highest UV index is 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
Kollumerpomp, Netherlands
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 68).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Kollumerpomp, Netherlands
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





