September weather forecastBollewick, Germany
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Bollewick, Germany, with an average temperature ranging between max 18.6°C (65.5°F) and min 10.4°C (50.7°F).Temperature
Bollewick observes a small decrease in the average high-temperature with the arrival of September, falling from August's warm 23.3°C (73.9°F) to a comfortable 18.6°C (65.5°F). An average nighttime temperature of 10.4°C (50.7°F) is witnessed throughout September.Humidity
The average relative humidity in September in Bollewick is 78%.Rainfall
In Bollewick, in September, during 14.9 rainfall days, 34mm (1.34") of precipitation is typically accumulated. In Bollewick, during the entire year, the rain falls for 174.6 days and collects up to 426mm (16.77") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day in Bollewick is 12h and 41min.On the first day of the month, sunrise is at 06:20 and sunset at 19:58. On the last day of September, sunrise is at 07:10 and sunset at 18:48 CEST.
Sunshine
In September, the average sunshine is 8.2h.UV index
The average daily maximum UV index in September in Bollewick is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bollewick, Germany
- Average high temperature in September: 18.6°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (2.2°C).
- Average low temperature in September: 10.4°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (-1.9°C).
Average pressure in September
Bollewick, Germany
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is September (1016.5mbar).
The month with the lowest atmospheric pressure is November (1012.6mbar).
Average wind speed in September
Bollewick, Germany
- Average wind speed in September: 12.3km/h
The windiest month (with the highest average wind speed) is December (17.1km/h).
The calmest month (with the lowest average wind speed) is August (11.8km/h).
Average humidity in September
Bollewick, Germany
- Average humidity in September: 78%
The months with the highest relative humidity are January and December (90%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Bollewick, Germany
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is July (62mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Bollewick, Germany
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is July (21.4 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in September
Bollewick, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (41mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Bollewick, Germany
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (7.8 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
Bollewick, Germany
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Bollewick, Germany
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is April (16.8 days).
The month with the least sunshine days is July (7.9 days).
Average UV index in September
Bollewick, Germany
- 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, November and December (UV index 1).
Average cloud cover in September
Bollewick, Germany
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Bollewick, Germany
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).
