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
With the onset of September, Sleeuwijk experiences a modest temperature adjustment, with the average high-temperature gently receding from an agreeable 22.3°C (72.1°F) in August to a refreshing 18.9°C (66°F). Throughout September, Sleeuwijk's nights cool down to an average of 11.8°C (53.2°F).Humidity
In Sleeuwijk, the average relative humidity in September is 80%.Rainfall
In Sleeuwijk, in September, it is raining for 16.6 days, with typically 41mm (1.61") of accumulated precipitation. Throughout the year, in Sleeuwijk, there are 201.9 rainfall days, and 550mm (21.65") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 39min.On the first day of September, sunrise is at 06:53 and sunset at 20:26. On the last day of the month, sunrise is at 07:40 and sunset at 19:19 CEST.
Sunshine
In September, the average sunshine in Sleeuwijk is 7.4h.UV index
The average daily maximum UV index in September in Sleeuwijk is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What is the average September temperature in Sleeuwijk?
What is the average humidity in September in Sleeuwijk?
How many days does it rain in September in Sleeuwijk?
When it does not snow in Sleeuwijk?
How many hours of daylight does Sleeuwijk have in September?
When is the sunrise / sunset in September in Sleeuwijk?
How many hours of sunshine does Sleeuwijk have in September?
What is the UV index intensity in September in Sleeuwijk?
Average temperature in September
Sleeuwijk, Netherlands
- Average high temperature in September: 18.9°C
The warmest month (with the highest average high temperature) is July (22.4°C).
The month with the lowest average high temperature is January (5.4°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 February (1.6°C).
Average pressure in September
Sleeuwijk, Netherlands
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1011.6mbar).
Average wind speed in September
Sleeuwijk, Netherlands
- Average wind speed in September: 12.4km/h
The windiest month (with the highest average wind speed) is December (18.1km/h).
The calmest month (with the lowest average wind speed) is August (12.2km/h).
Average humidity in September
Sleeuwijk, Netherlands
- Average humidity in September: 80%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Sleeuwijk, Netherlands
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is August (60mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Sleeuwijk, Netherlands
- Average rainfall days in September: 16.6 days
The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is February (13.4 days).
Average snowfall in September
Sleeuwijk, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (27mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Sleeuwijk, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 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
Sleeuwijk, Netherlands
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 7h and 2min
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 36min).
Average sunshine days in September
Sleeuwijk, Netherlands
- Average sunshine days in September: 10.3 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (7.7 days).
Average UV index in September
Sleeuwijk, 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
Sleeuwijk, Netherlands
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are April and August (Cloud cover 40).
Average visibility in September
Sleeuwijk, 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).
Sleeuwijk, Netherlands
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