September weather forecastCalfven, Netherlands
September
Weather in September
September, the first month of the autumn in Calfven, is still a comfortable month, with an average temperature ranging between max 19.2°C (66.6°F) and min 11.9°C (53.4°F).Temperature
September is characterized by a slight reduction in average high-temperature, easing from a pleasant 22.5°C (72.5°F) in August to a comfortable 19.2°C (66.6°F). During the nights in September, Calfven experiences a consistent average temperature of 11.9°C (53.4°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In Calfven, during September, the rain falls for 15.5 days and regularly aggregates up to 37mm (1.46") of precipitation. In Calfven, during the entire year, the rain falls for 206.2 days and collects up to 588mm (23.15") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 38min.On the first day of September, sunrise is at 06:56 and sunset at 20:28. On the last day of the month, sunrise is at 07:42 and sunset at 19:22 CEST.
Sunshine
In Calfven, the average sunshine in September is 7.4h.UV index
In Calfven, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Calfven, Netherlands
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (22.5°C).
The month with the lowest average high temperature is January (5.6°C).
- Average low temperature in September: 11.9°C
The month with the highest average low temperature is August (14.4°C).
The coldest months (with the lowest average low temperature) are January and February (1.9°C).
Average pressure in September
Calfven, Netherlands
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1011.9mbar).
Average wind speed in September
Calfven, Netherlands
- Average wind speed in September: 12.9km/h
The windiest month (with the highest average wind speed) is December (18.3km/h).
The calmest months (with the lowest average wind speed) are July and August (12.7km/h).
Average humidity in September
Calfven, 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
Calfven, Netherlands
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is December (62mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Calfven, Netherlands
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is August (19.2 days).
The month with the least rainy days is April (14.6 days).
Average snowfall in September
Calfven, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (33mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Calfven, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.1 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
Calfven, 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: 7h and 54min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Calfven, Netherlands
- Average sunshine days in September: 11 days
The month with the most sunshine days is April (12.4 days).
The month with the least sunshine days is December (7.5 days).
Average UV index in September
Calfven, 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
Calfven, Netherlands
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 41).
Average visibility in September
Calfven, 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).
