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
The transition into September in Deventer is accompanied by a slight temperature decrease, with the average high-temperature shifting from a pleasant 22.3°C (72.1°F) in August to a comfortable 18.6°C (65.5°F). During the month of September, the nighttime temperature falls to an average of 10.9°C (51.6°F).Humidity
In September, the average relative humidity is 83%.Rainfall
In Deventer, Netherlands, during September, the rain falls for 8.7 days and regularly aggregates up to 12mm (0.47") of precipitation. Throughout the year, there are 131.6 rainfall days, and 193mm (7.6") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 40min.On the first day of September, sunrise is at 06:47 and sunset at 20:22. On the last day of the month, sunrise is at 07:35 and sunset at 19:14 CEST.
Sunshine
In September, the average sunshine in Deventer is 7.5h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
What is the temperature in September in Deventer?
What is the average humidity in September in Deventer?
How many days does it rain in September in Deventer?
When it does not snow in Deventer?
How many hours of daylight does Deventer have in September?
What time are sunrise and sunset in September in Deventer?
How many hours of sunshine does Deventer have in September?
What is the UV index intensity in September in Deventer?
Average temperature in September
Deventer, Netherlands
- Average high temperature in September: 18.6°C
The warmest month (with the highest average high temperature) is August (22.3°C).
The month with the lowest average high temperature is January (4.4°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).
Average pressure in September
Deventer, 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 (1011.8mbar).
Average wind speed in September
Deventer, Netherlands
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is December (18.1km/h).
The calmest months (with the lowest average wind speed) are July and August (11.9km/h).
Average humidity in September
Deventer, Netherlands
- Average humidity in September: 83%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Deventer, Netherlands
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is June (24mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in September
Deventer, Netherlands
- Average rainfall days in September: 8.7 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is September (8.7 days).
Average snowfall in September
Deventer, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Deventer, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (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
Deventer, 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 3min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Deventer, Netherlands
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Deventer, 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
Deventer, Netherlands
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in September
Deventer, Netherlands
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (9km).
The month with the lowest visibility is September (8km).
Deventer, Netherlands
Weather forecast for your location
2. Allow the app to use your location
