Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September ushers in a minor alteration in Westerlee's climate, with the average high-temperature moving from August's pleasant 22.1°C (71.8°F) to an enjoyable 18.7°C (65.7°F). During the September nights, an average temperature of 10.8°C (51.4°F) is observed.Humidity
In September, the average relative humidity is 82%.Rainfall
In Westerlee, in September, during 15.5 rainfall days, 27mm (1.06") of precipitation is typically accumulated. In Westerlee, during the entire year, the rain falls for 175.1 days and collects up to 369mm (14.53") of precipitation.Snowfall
April through October are months without snowfall in Westerlee.Daylight
In Westerlee, the average length of the day in September is 12h and 40min.On the first day of September in Westerlee, sunrise is at 06:42 and sunset at 20:20. On the last day of the month, sunrise is at 07:32 and sunset at 19:10 CEST.
Sunshine
The average sunshine in September in Westerlee is 6.9h.UV index
In Westerlee, 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 ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Westerlee in September?
What is the average humidity in September in Westerlee?
How much does it rain in Westerlee in September?
When it does not snow in Westerlee?
How many hours of daylight does Westerlee have in September?
When is the sunrise / sunset in September in Westerlee?
How many hours of sunshine does Westerlee have in September?
What is the UV index reading in September in Westerlee?
Average temperature in September
Westerlee, Netherlands
- Average high temperature in September: 18.7°C
The warmest month (with the highest average high temperature) is August (22.1°C).
The month with the lowest average high temperature is January (4.1°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (0.2°C).
Average pressure in September
Westerlee, Netherlands
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1011.4mbar).
Average wind speed in September
Westerlee, Netherlands
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is December (19km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in September
Westerlee, 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
Westerlee, Netherlands
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is June (43mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Westerlee, Netherlands
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in September
Westerlee, Netherlands
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (25mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Westerlee, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.4 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
Westerlee, Netherlands
- Average daylight in September: 12h and 4min
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: 6h and 5min
The month with the most sunshine is August (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Westerlee, Netherlands
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is March (15.8 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in September
Westerlee, 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
Westerlee, Netherlands
- Average cloud cover in September: 51
The month with the most cloud cover is December (Cloud cover 70).
The months with the least cloud cover are April and August (Cloud cover 45).
Average visibility in September
Westerlee, Netherlands
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, October and December (9km).
The months with the lowest visibility are September and November (8km).
