September weather forecastBontemorgen, Netherlands
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Bontemorgen, Netherlands, with an average temperature ranging between max 18.7°C (65.7°F) and min 10.7°C (51.3°F).Temperature
As September begins, there is a minor decrease in the average high-temperature, softly falling from a pleasant 22.3°C (72.1°F) in August to a comfortable 18.7°C (65.7°F). Throughout the month of September, Bontemorgen observes an average nighttime temperature of 10.7°C (51.3°F).Humidity
The average relative humidity in September in Bontemorgen is 82%.Rainfall
In September, the rain falls for 13.5 days. Throughout September, 28mm (1.1") of precipitation is accumulated. In Bontemorgen, during the entire year, the rain falls for 193.3 days and collects up to 523mm (20.59") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Bontemorgen, the average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 06:50 and sunset at 20:24. On the last day of September, in Bontemorgen, sunrise is at 07:38 and sunset at 19:17 CEST.
Sunshine
In Bontemorgen, Netherlands, the average sunshine in September is 7.2h.UV index
In September, the average daily maximum UV index in Bontemorgen is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Ensure safety - Sun damage prevention is strongly urged. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bontemorgen, Netherlands
- Average high temperature in September: 18.7°C
The warmest months (with the highest average high temperature) are July and August (22.3°C).
The month with the lowest average high temperature is January (4.6°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is August (13.8°C).
The coldest months (with the lowest average low temperature) are January and February (1°C).
Average pressure in September
Bontemorgen, 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 (1011.8mbar).
Average wind speed in September
Bontemorgen, Netherlands
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is December (17.7km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in September
Bontemorgen, Netherlands
- Average humidity in September: 82%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Bontemorgen, Netherlands
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is June (53mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Bontemorgen, Netherlands
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is September (13.5 days).
Average snowfall in September
Bontemorgen, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (39mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Bontemorgen, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.7 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
Bontemorgen, Netherlands
- Average daylight in September: 12h and 36min
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 12min
The month with the most sunshine is July (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Bontemorgen, Netherlands
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is December (7.9 days).
Average UV index in September
Bontemorgen, 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
Bontemorgen, Netherlands
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility in September
Bontemorgen, Netherlands
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, October and November (9km).
The months with the lowest visibility are September and December (8km).
