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's arrival comes with a mild decrease in the average high-temperature, moving subtly from an agreeable 22.2°C (72°F) in August to an enjoyable 18.7°C (65.7°F). Utrecht cools down to an average low-temperature of 11.5°C (52.7°F) throughout the month of September.Humidity
In Utrecht, the average relative humidity in September is 81%.Rainfall
In September, the rain falls for 11.9 days. Throughout September, 19mm (0.75") of precipitation is accumulated. Throughout the year, in Utrecht, there are 157.3 rainfall days, and 300mm (11.81") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Utrecht, Netherlands.Daylight
In September, the average length of the day in Utrecht, Netherlands, is 12h and 39min.On the first day of the month, sunrise is at 06:52 and sunset at 20:26. On the last day of September, in Utrecht, sunrise is at 07:39 and sunset at 19:18 CEST.
Sunshine
In September, the average sunshine is 7.2h.UV index
In Utrecht, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
What are September temperatures in Utrecht?
What is the average humidity in September in Utrecht?
How many days does it rain in September in Utrecht?
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?
What is the UV index reading 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).
Utrecht, Netherlands
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