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
In September, the average high-temperature slightly decreases from an agreeable 22.2°C (72°F) in August to a comfortable 18.7°C (65.7°F). The average low-temperature, in Utrecht, is 11.5°C (52.7°F).Humidity
The average relative humidity in September in Utrecht is 81%.Rainfall
In September, in Utrecht, the rain falls for 11.9 days. Throughout September, 19mm (0.75") of precipitation is accumulated. In Utrecht, during the entire year, the rain falls for 157.3 days and collects up to 300mm (11.81") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Utrecht is 12h and 39min.On the first day of the month, sunrise is at 06:50 and sunset at 20:28. On the last day of September, in Utrecht, sunrise is at 07:38 and sunset at 19:20 CEST.
Sunshine
The average sunshine in September in Utrecht is 7.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 4 in September transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
FAQ
What is the temperature in September in Utrecht?
What is the average humidity in September in Utrecht?
How much does it rain in Utrecht in September?
When it does not snow in Utrecht?
How many hours of daylight does Utrecht have in September?
When are sunrise and sunset in September in Utrecht?
How many hours of sunshine does Utrecht have in September?
How high is the UV index in September in Utrecht?
Average temperature in September
Utrecht, Netherlands
- Average high temperature in September: 18.7°C
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (5.2°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (1.4°C).
Average pressure in September
Utrecht, Netherlands
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).
Average wind speed in September
Utrecht, Netherlands
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is December (17.9km/h).
The calmest month (with the lowest average wind speed) is August (11.9km/h).
Average humidity in September
Utrecht, Netherlands
- Average humidity in September: 81%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Utrecht, Netherlands
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is July (36mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Utrecht, Netherlands
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is October (10.4 days).
Average snowfall in September
Utrecht, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (21mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Utrecht, Netherlands
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (2.2 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
Utrecht, Netherlands
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Utrecht, Netherlands
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in September
Utrecht, 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
Utrecht, Netherlands
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in September
Utrecht, 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).
Weather forecast for your location
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