September weather forecastGraauw, Netherlands
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Graauw, Netherlands, with an average temperature ranging between min 11.8°C (53.2°F) and max 19.7°C (67.5°F).Temperature
As September arrives, Graauw's weather displays a minor decrease in high-temperatures, transitioning from August's agreeable 22.9°C (73.2°F) to a refreshing 19.7°C (67.5°F). In September, in Graauw, the average low-temperature is a cool 11.8°C (53.2°F).Humidity
The average relative humidity in September is 78%.Rainfall
In Graauw, in September, during 12.9 rainfall days, 32mm (1.26") of precipitation is typically accumulated. Throughout the year, there are 180.8 rainfall days, and 462mm (18.19") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Graauw.Daylight
The average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 06:57 and sunset at 20:29. On the last day of September, in Graauw, sunrise is at 07:43 and sunset at 19:23 CEST.
Sunshine
In September, the average sunshine is 7.5h.UV index
In Graauw, 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: A maximum daily UV index of 4 during September morphs into the following directions:
Be vigilant - Suggestions to stave off sun damage are provided. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Graauw, Netherlands
- Average high temperature in September: 19.7°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 (5.6°C).
- Average low temperature in September: 11.8°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 (1.7°C).
Average pressure in September
Graauw, Netherlands
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).
Average wind speed in September
Graauw, Netherlands
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is December (17.6km/h).
The calmest month (with the lowest average wind speed) is August (12.1km/h).
Average humidity in September
Graauw, Netherlands
- Average humidity in September: 78%
The month with the highest relative humidity is December (87%).
The months with the lowest relative humidity are April and August (74%).
Average rainfall in September
Graauw, Netherlands
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is December (47mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Graauw, Netherlands
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (12.4 days).
Average snowfall in September
Graauw, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (29mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Graauw, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.4 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
Graauw, 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: 7h and 30min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Graauw, Netherlands
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Graauw, 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
Graauw, Netherlands
- Average cloud cover in September: 42
The months with the most cloud cover are January and December (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Graauw, 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).
