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
Weather in September
Temperature
September brings a slight decrease in the average high-temperature, shifting from an agreeable 22.8°C (73°F) in August to a refreshing 19.2°C (66.6°F). Throughout September, an average low-temperature of 11.5°C (52.7°F) is expected.Humidity
The average relative humidity in September in Heijen is 79%.Rainfall
In Heijen, during September, the rain falls for 13.6 days and regularly aggregates up to 32mm (1.26") of precipitation. In Heijen, during the entire year, the rain falls for 177.1 days and collects up to 459mm (18.07") of precipitation.Snowfall
In Heijen, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 38min.On the first day of September in Heijen, sunrise is at 06:49 and sunset at 20:22. On the last day of the month, sunrise is at 07:36 and sunset at 19:15 CEST.
Sunshine
In September, the average sunshine in Heijen is 7.8h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 4 in September transforms into the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What is the usual temperature for Heijen in September?
What is the average humidity in September in Heijen?
How much does it rain in Heijen in September?
When it does not snow in Heijen?
What is the average length of the day in September in Heijen?
When is the sunrise / sunset in September in Heijen?
How many hours of sunshine does Heijen have in September?
How high is the UV index in September in Heijen?
Average temperature in September
Heijen, Netherlands
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is July (23°C).
The month with the lowest average high temperature is January (4.7°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).
Average pressure in September
Heijen, 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 (1012.5mbar).
Average wind speed in September
Heijen, Netherlands
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is December (17.6km/h).
The calmest months (with the lowest average wind speed) are July and August (11.5km/h).
Average humidity in September
Heijen, Netherlands
- Average humidity in September: 79%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Heijen, Netherlands
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in September
Heijen, Netherlands
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is April (12.8 days).
Average snowfall in September
Heijen, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (31mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Heijen, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.7 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
Heijen, Netherlands
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 7h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Heijen, Netherlands
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is March (15.1 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Heijen, 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
Heijen, Netherlands
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Heijen, 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).
Heijen, Netherlands
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