September weather forecastBirkenes, Norway
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Birkenes, Norway, with an average temperature varying between 14.9°C (58.8°F) and 10.7°C (51.3°F).Temperature
Birkenes records a slight change with September's average high-temperatures adjusting to a mild 14.9°C (58.8°F) from August's 17.9°C (64.2°F). Birkenes maintains a minor drop in temperature during September nights, with averages of 10.7°C (51.3°F).Humidity
In Birkenes, the average relative humidity in September is 80%.Rainfall
In September, in Birkenes, the rain falls for 14.7 days. Throughout September, 75mm (2.95") of precipitation is accumulated. Throughout the year, in Birkenes, there are 163.3 rainfall days, and 854mm (33.62") of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September in Birkenes is 12h and 49min.On the first day of September, sunrise is at 06:27 and sunset at 20:26. On the last day of the month, sunrise is at 07:30 and sunset at 19:03 CEST.
Sunshine
The average sunshine in September in Birkenes is 7.5h.UV index
The average daily maximum UV index in September in Birkenes is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 3 in September suggests the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Birkenes, Norway
- Average high temperature in September: 14.9°C
The warmest month (with the highest average high temperature) is July (18.4°C).
The month with the lowest average high temperature is February (1.9°C).
- Average low temperature in September: 10.7°C
The months with the highest average low temperature are July and August (12.8°C).
The coldest month (with the lowest average low temperature) is February (-1.4°C).
Average pressure in September
Birkenes, Norway
- Average pressure in September: 1013mbar
The months with the highest atmospheric pressure are April and May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in September
Birkenes, Norway
- Average wind speed in September: 18.9km/h
The windiest month (with the highest average wind speed) is January (21.8km/h).
The calmest month (with the lowest average wind speed) is June (16.5km/h).
Average humidity in September
Birkenes, Norway
- Average humidity in September: 80%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are May and June (72%).
Average rainfall in September
Birkenes, Norway
- Average rainfall in September: 75mm
The wettest month (with the highest rainfall) is November (92mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in September
Birkenes, Norway
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is November (17.3 days).
The month with the least rainy days is February (9.6 days).
Average snowfall in September
Birkenes, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (115mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Birkenes, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Birkenes, Norway
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in September
Birkenes, Norway
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is April (16.4 days).
The month with the least sunshine days is November (10.2 days).
Average UV index in September
Birkenes, Norway
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 4).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Birkenes, Norway
- Average cloud cover in September: 46
The month with the most cloud cover is November (Cloud cover 64).
The month with the least cloud cover is June (Cloud cover 36).
Average visibility in September
Birkenes, Norway
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, October, November and December (9km).
