September weather forecastWinsum, Netherlands
September
Weather in September
September, the first month of the autumn in Winsum, is still a comfortable month, with an average temperature fluctuating between 18°C (64.4°F) and 11.7°C (53.1°F).Temperature
As August transitions into September, Winsum sees a gentle drop in the average high-temperature, transitioning from an agreeable 21.3°C (70.3°F) to a refreshing 18°C (64.4°F). An average temperature of 11.7°C (53.1°F) marks the nights in September.Humidity
The average relative humidity in September is 82%.Rainfall
In Winsum, in September, it is raining for 15.1 days, with typically 26mm (1.02") of accumulated precipitation. In Winsum, Netherlands, during the entire year, the rain falls for 179 days and collects up to 336mm (13.23") of precipitation.Snowfall
In Winsum, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 41min.On the first day of September in Winsum, sunrise is at 06:44 and sunset at 20:23. On the last day of the month, sunrise is at 07:34 and sunset at 19:12 CEST.
Sunshine
The average sunshine in September in Winsum is 7.2h.UV index
In September, the average daily maximum UV index in Winsum is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Winsum, 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 (4.4°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is February (1°C).
Average pressure in September
Winsum, 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 (1011.1mbar).
Average wind speed in September
Winsum, Netherlands
- Average wind speed in September: 15.1km/h
The windiest month (with the highest average wind speed) is December (21.2km/h).
The calmest month (with the lowest average wind speed) is July (14km/h).
Average humidity in September
Winsum, 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 (77%).
Average rainfall in September
Winsum, Netherlands
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is June (41mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Winsum, Netherlands
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (11.5 days).
Average snowfall in September
Winsum, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Winsum, 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
Winsum, 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 12min
The month with the most sunshine is July (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Winsum, Netherlands
- Average sunshine days in September: 10.2 days
The months with the most sunshine days are March and April (14.8 days).
The month with the least sunshine days is December (9 days).
Average UV index in September
Winsum, 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
Winsum, Netherlands
- Average cloud cover in September: 46
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
Winsum, Netherlands
- Average visibility in September: 9km
The months with the highest visibility are April and August (10km).
The months with the lowest visibility are January, February, March, May, June, July, September, October, November and December (9km).
