September weather forecastLeirsund, Norway
September
Weather in September
September, the first month of the autumn in Leirsund, is still a mild month, with an average temperature fluctuating between 14.2°C (57.6°F) and 6.6°C (43.9°F).Temperature
The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a comfortable 18.3°C (64.9°F) in August to a still refreshing 14.2°C (57.6°F). The average temperature during September nights in Leirsund is registered at a frosty 6.6°C (43.9°F).Humidity
In September, the average relative humidity is 81%.Rainfall
In Leirsund, in September, during 11.5 rainfall days, 28mm (1.1") of precipitation is typically accumulated. In Leirsund, during the entire year, the rain falls for 138.7 days and collects up to 344mm (13.54") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Leirsund is 12h and 52min.On the first day of September, sunrise is at 06:12 and sunset at 20:18. On the last day of the month, sunrise is at 07:20 and sunset at 18:50 CEST.
Sunshine
The average sunshine in September in Leirsund, Norway, is 7.3h.UV index
In September, the average daily maximum UV index in Leirsund is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 3 during September translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Leirsund, Norway
- Average high temperature in September: 14.2°C
The warmest month (with the highest average high temperature) is July (20.1°C).
The month with the lowest average high temperature is January (-3.2°C).
- Average low temperature in September: 6.6°C
The month with the highest average low temperature is July (10.3°C).
The coldest month (with the lowest average low temperature) is February (-8.1°C).
Average pressure in September
Leirsund, Norway
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is April (1014.4mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Leirsund, Norway
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is May (9.1km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).
Average humidity in September
Leirsund, Norway
- Average humidity in September: 81%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Leirsund, Norway
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is January (16mm).
Average rainfall days in September
Leirsund, Norway
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in September
Leirsund, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is March (103mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Leirsund, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Leirsund, Norway
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are January and December (Average sunshine: 3h and 0min).
Average sunshine days in September
Leirsund, Norway
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is October (16.2 days).
The month with the least sunshine days is July (8.2 days).
Average UV index in September
Leirsund, Norway
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March and December (UV index 1).
Average cloud cover in September
Leirsund, Norway
- Average cloud cover in September: 52
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is June (Cloud cover 48).
Average visibility in September
Leirsund, Norway
- Average visibility in September: 8km
The months with the highest visibility are May and June (9km).
The month with the lowest visibility is February (5km).
