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's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderately hot 23.1°C (73.6°F) to a comfortable 19°C (66.2°F). An average nighttime temperature of 11.1°C (52°F) is witnessed throughout September.Humidity
In Westerhoven, Netherlands, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 10.7 days. Throughout September, 20mm (0.79") of precipitation is accumulated. Throughout the year, there are 154 rainfall days, and 318mm (12.52") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Westerhoven, the average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 06:52 and sunset at 20:24. On the last day of September, sunrise is at 07:38 and sunset at 19:18 CEST.
Sunshine
In September, the average sunshine is 7.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Guard yourself - Avoiding sunburn is suggested. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Westerhoven have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Westerhoven, Netherlands
- Average high temperature in September: 19°C
The warmest months (with the highest average high temperature) are July and August (23.1°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (14.3°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in September
Westerhoven, Netherlands
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1012.3mbar).
Average wind speed in September
Westerhoven, Netherlands
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is December (17.5km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in September
Westerhoven, Netherlands
- Average humidity in September: 80%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Westerhoven, Netherlands
- Average rainfall in September: 20mm
The wettest months (with the highest rainfall) are July, August and December (32mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Westerhoven, Netherlands
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is September (10.7 days).
Average snowfall in September
Westerhoven, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (32mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Westerhoven, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.3 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
Westerhoven, Netherlands
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 7h and 4min
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 36min).
Average sunshine days in September
Westerhoven, Netherlands
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in September
Westerhoven, Netherlands
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Westerhoven, Netherlands
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are April and August (Cloud cover 42).
Average visibility in September
Westerhoven, 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).
