September weather forecastBierum, Netherlands
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Bierum, Netherlands, with an average temperature ranging between max 17.9°C (64.2°F) and min 12.1°C (53.8°F).Temperature
September implies a soft temperature shift, with average high-temperatures reducing from August's agreeable 21.2°C (70.2°F) to a refreshing 17.9°C (64.2°F). During the month of September, an average low-temperature of 12.1°C (53.8°F) is recorded in Bierum.Humidity
In Bierum, the average relative humidity in September is 81%.Rainfall
In Bierum, during September, the rain falls for 11.9 days and regularly aggregates up to 16mm (0.63") of precipitation. Throughout the year, in Bierum, there are 146.3 rainfall days, and 214mm (8.43") of precipitation is accumulated.Snowfall
In Bierum, snow does not fall in April through October.Daylight
In September, the average length of the day in Bierum is 12h and 41min.On the first day of the month, sunrise is at 06:42 and sunset at 20:21. On the last day of September, sunrise is at 07:33 and sunset at 19:11 CEST.
Sunshine
In September, the average sunshine is 7.3h.UV index
The average daily maximum UV index in September in Bierum, Netherlands, is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Around midday, solar radiation is most harmful; hence, exposure should be limited. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bierum, Netherlands
- Average high temperature in September: 17.9°C
The warmest month (with the highest average high temperature) is August (21.2°C).
The month with the lowest average high temperature is January (4.2°C).
- Average low temperature in September: 12.1°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (0.9°C).
Average pressure in September
Bierum, Netherlands
- Average pressure in September: 1016.3mbar
The months with the highest atmospheric pressure are May and September (1016.3mbar).
The month with the lowest atmospheric pressure is November (1011.1mbar).
Average wind speed in September
Bierum, Netherlands
- Average wind speed in September: 16.1km/h
The windiest month (with the highest average wind speed) is December (22.4km/h).
The calmest month (with the lowest average wind speed) is July (14.7km/h).
Average humidity in September
Bierum, Netherlands
- Average humidity in September: 81%
The month with the highest relative humidity is December (88%).
The months with the lowest relative humidity are April and August (78%).
Average rainfall in September
Bierum, Netherlands
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is August (26mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in September
Bierum, Netherlands
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in September
Bierum, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Bierum, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Bierum, Netherlands
- 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: 7h and 18min
The months with the most sunshine are July and August (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Bierum, Netherlands
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is April (17.8 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in September
Bierum, Netherlands
- Average UV index in September: 4
The months with the highest UV index are 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
Bierum, Netherlands
- Average cloud cover in September: 46
The month with the most cloud cover is December (Cloud cover 68).
The months with the least cloud cover are April and August (Cloud cover 40).
Average visibility in September
Bierum, Netherlands
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, June and August (10km).
The months with the lowest visibility are January, May, July, September, October, November and December (9km).
