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 is marked by a subtle drop in average high-temperatures, transitioning from an agreeable 22.9°C (73.2°F) in August to a refreshing 18.9°C (66°F). Graetheide reports a consistent average low-temperature of 10.6°C (51.1°F) throughout September nights.Humidity
The average relative humidity in September in Graetheide is 79%.Rainfall
In Graetheide, in September, it is raining for 11.3 days, with typically 23mm (0.91") of accumulated precipitation. In Graetheide, during the entire year, the rain falls for 173 days and collects up to 456mm (17.95") of precipitation.Snowfall
In Graetheide, Netherlands, snow does not fall in April through October.Daylight
In September, the average length of the day in Graetheide is 12h and 38min.On the first day of the month, sunrise is at 06:51 and sunset at 20:22. On the last day of September, in Graetheide, sunrise is at 07:36 and sunset at 19:16 CEST.
Sunshine
In September, the average sunshine is 8h.UV index
In September, the average daily maximum UV index in Graetheide is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What are September temperatures in Graetheide?
What is the average humidity in September in Graetheide?
How many days does it rain in September in Graetheide?
When it does not snow in Graetheide?
How many hours of daylight does Graetheide have in September?
When are sunrise and sunset in September in Graetheide?
How many hours of sunshine does Graetheide have in September?
What is the UV index reading in September in Graetheide?
Average temperature in September
Graetheide, Netherlands
- Average high temperature in September: 18.9°C
The warmest month (with the highest average high temperature) is August (22.9°C).
The month with the lowest average high temperature is January (4.7°C).
- Average low temperature in September: 10.6°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).
Average pressure in September
Graetheide, Netherlands
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).
Average wind speed in September
Graetheide, Netherlands
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in September
Graetheide, Netherlands
- Average humidity in September: 79%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Graetheide, Netherlands
- Average rainfall in September: 23mm
The wettest months (with the highest rainfall) are June and December (49mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Graetheide, Netherlands
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is September (11.3 days).
Average snowfall in September
Graetheide, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (46mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Graetheide, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.5 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
Graetheide, 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: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in September
Graetheide, Netherlands
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in September
Graetheide, 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
Graetheide, Netherlands
- Average cloud cover in September: 41
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Graetheide, 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).
Graetheide, Netherlands
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