September weather forecastGrashoek, Netherlands
September
Weather in September
September, the first month of the autumn in Grashoek, is also an enjoyable month, with an average temperature varying between 11.4°C (52.5°F) and 19.3°C (66.7°F).Temperature
September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a warm 23.2°C (73.8°F) in August to an enjoyable 19.3°C (66.7°F). In Grashoek, September nights witness a steady temperature drop to a fresh 11.4°C (52.5°F).Humidity
In Grashoek, the average relative humidity in September is 78%.Rainfall
In Grashoek, Netherlands, in September, it is raining for 9.3 days, with typically 13mm (0.51") of accumulated precipitation. In Grashoek, Netherlands, during the entire year, the rain falls for 133.3 days and collects up to 202mm (7.95") of precipitation.Snowfall
In Grashoek, snow does not fall in April through October.Daylight
In September, the average length of the day in Grashoek is 12h and 38min.On the first day of the month, sunrise is at 06:50 and sunset at 20:22. On the last day of September, sunrise is at 07:36 and sunset at 19:15 CEST.
Sunshine
In September, the average sunshine is 8h.UV index
In September, the average daily maximum UV index in Grashoek is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grashoek, Netherlands
- Average high temperature in September: 19.3°C
The warmest month (with the highest average high temperature) is July (23.3°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 11.4°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°C).
Average pressure in September
Grashoek, Netherlands
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1012.7mbar).
Average wind speed in September
Grashoek, Netherlands
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is December (17.2km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in September
Grashoek, Netherlands
- Average humidity in September: 78%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Grashoek, Netherlands
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is July (21mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in September
Grashoek, Netherlands
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is September (9.3 days).
Average snowfall in September
Grashoek, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (18mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Grashoek, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4 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
Grashoek, Netherlands
- Average daylight in September: 12h and 36min
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 24min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Grashoek, Netherlands
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is April (17.9 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in September
Grashoek, 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
Grashoek, Netherlands
- Average cloud cover in September: 42
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
Grashoek, 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).
