September weather forecastSlevik, Norway
September
Weather in September
The first month of the autumn, September, is still a mild month in Slevik, Norway, with an average temperature ranging between min 11°C (51.8°F) and max 15.3°C (59.5°F).Temperature
The advent of September brings a subtle shift in temperature, with the average high moving from a comfortable 18.5°C (65.3°F) in August to a moderate 15.3°C (59.5°F). An average nighttime temperature of 11°C (51.8°F) marks September in Slevik, Norway.Humidity
In September, the average relative humidity is 78%.Rainfall
In Slevik, in September, during 10.6 rainfall days, 43mm (1.69") of precipitation is typically accumulated. Throughout the year, in Slevik, there are 127 rainfall days, and 382mm (15.04") of precipitation is accumulated.Snowfall
In Slevik, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 50min.On the first day of the month, sunrise is at 06:15 and sunset at 20:17. On the last day of September, sunrise is at 07:20 and sunset at 18:52 CEST.
Sunshine
In Slevik, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Slevik is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, a daily UV index of 4 turns into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Slevik, Norway
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (19.2°C).
The month with the lowest average high temperature is February (0.5°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is July (13.9°C).
The coldest month (with the lowest average low temperature) is February (-2.9°C).
Average pressure in September
Slevik, Norway
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is April (1014.3mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Slevik, Norway
- Average wind speed in September: 17.4km/h
The windiest month (with the highest average wind speed) is December (20.1km/h).
The calmest month (with the lowest average wind speed) is June (14.6km/h).
Average humidity in September
Slevik, Norway
- Average humidity in September: 78%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in September
Slevik, Norway
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is January (17mm).
Average rainfall days in September
Slevik, Norway
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is August (15.7 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in September
Slevik, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (42mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Slevik, Norway
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Slevik, Norway
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Slevik, Norway
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is April (19.5 days).
The month with the least sunshine days is August (13.5 days).
Average UV index in September
Slevik, Norway
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Slevik, Norway
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are June and August (Cloud cover 36).
Average visibility in September
Slevik, Norway
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
