September weather forecastSleen, Netherlands
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Sleen, Netherlands, with an average temperature ranging between min 10.9°C (51.6°F) and max 18.5°C (65.3°F).Temperature
With the onset of September, Sleen's climate undergoes a slight change as the average high-temperature moves from an agreeable 22°C (71.6°F) in August to an enjoyable 18.5°C (65.3°F). During September, Sleen records an average temperature of 10.9°C (51.6°F) at night.Humidity
The average relative humidity in September in Sleen, Netherlands, is 82%.Rainfall
In Sleen, in September, during 17.3 rainfall days, 38mm (1.5") of precipitation is typically accumulated. In Sleen, during the entire year, the rain falls for 203.1 days and collects up to 528mm (20.79") of precipitation.Snowfall
May through October are months without snowfall in Sleen, Netherlands.Daylight
In September, the average length of the day in Sleen is 12h and 40min.On the first day of the month, sunrise is at 06:44 and sunset at 20:21. On the last day of September, sunrise is at 07:33 and sunset at 19:11 CEST.
Sunshine
In September, the average sunshine in Sleen is 7.5h.UV index
In Sleen, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sleen, Netherlands
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (22°C).
The month with the lowest average high temperature is January (4°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (0.4°C).
Average pressure in September
Sleen, Netherlands
- Average pressure in September: 1016.7mbar
The month with the highest atmospheric pressure is September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).
Average wind speed in September
Sleen, Netherlands
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is July (12.5km/h).
Average humidity in September
Sleen, 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 (74%).
Average rainfall in September
Sleen, Netherlands
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is June (60mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Sleen, Netherlands
- Average rainfall days in September: 17.3 days
The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is February (13.9 days).
Average snowfall in September
Sleen, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is December (32mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Sleen, Netherlands
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and 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
Sleen, Netherlands
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is August (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Sleen, Netherlands
- Average sunshine days in September: 9.3 days
The month with the most sunshine days is March (14.2 days).
The month with the least sunshine days is June (7.2 days).
Average UV index in September
Sleen, 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
Sleen, Netherlands
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 67).
The months with the least cloud cover are April and August (Cloud cover 42).
Average visibility in September
Sleen, 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).
