September weather forecastFollebu, Norway
September
Weather in September
September, the first month of the autumn in Follebu, is still a cool month, with temperature in the range of an average low of 4.2°C (39.6°F) and an average high of 12°C (53.6°F).Temperature
Follebu records a mild change in average high-temperature during September, easing from an enjoyable 16.6°C (61.9°F) in August to a fresh 12°C (53.6°F). During September, the nighttime temperature averages of 4.2°C (39.6°F).Humidity
The average relative humidity in September is 82%.Rainfall
In September, the rain falls for 13.4 days. Throughout September, 44mm (1.73") of precipitation is accumulated. In Follebu, Norway, during the entire year, the rain falls for 139.3 days and collects up to 535mm (21.06") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Follebu is 12h and 54min.On the first day of September in Follebu, sunrise is at 06:12 and sunset at 20:25. On the last day of the month, sunrise is at 07:24 and sunset at 18:53 CEST.
Sunshine
In Follebu, the average sunshine in September is 7.1h.UV index
In Follebu, Norway, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 2 turns into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Follebu, Norway
- Average high temperature in September: 12°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in September: 4.2°C
The month with the highest average low temperature is July (8.3°C).
The coldest month (with the lowest average low temperature) is January (-11.5°C).
Average pressure in September
Follebu, Norway
- Average pressure in September: 1012.3mbar
The month with the highest atmospheric pressure is April (1014.6mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in September
Follebu, Norway
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is June (9.3km/h).
The calmest month (with the lowest average wind speed) is November (7.6km/h).
Average humidity in September
Follebu, Norway
- Average humidity in September: 82%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is June (70%).
Average rainfall in September
Follebu, Norway
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is July (78mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in September
Follebu, Norway
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in September
Follebu, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (237mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Follebu, Norway
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and March (16.3 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Follebu, Norway
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 12min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in September: 7h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in September
Follebu, Norway
- Average sunshine days in September: 14 days
The month with the most sunshine days is December (14.2 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in September
Follebu, Norway
- Average UV index in September: 2
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, October and December (UV index 1).
Average cloud cover in September
Follebu, Norway
- Average cloud cover in September: 53
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is June (Cloud cover 48).
Average visibility in September
Follebu, Norway
- Average visibility in September: 8km
The months with the highest visibility are May and June (9km).
The months with the lowest visibility are January, February, March and November (6km).
