September weather forecastUlefoss, Norway
September
Weather in September
September, the first month of the autumn in Ulefoss, is still a refreshing month, with an average temperature fluctuating between 6.3°C (43.3°F) and 13.9°C (57°F).Temperature
With the onset of September, Ulefoss experiences a modest temperature adjustment, with the average high-temperature gently receding from a comfortable 18.3°C (64.9°F) in August to a mild 13.9°C (57°F). In September, in Ulefoss, the average low-temperature is a frosty 6.3°C (43.3°F).Humidity
In September, the average relative humidity is 81%.Rainfall
In September, the rain falls for 14.2 days. Throughout September, 61mm (2.4") of precipitation is accumulated. Throughout the year, in Ulefoss, there are 150 rainfall days, and 688mm (27.09") of precipitation is accumulated.Snowfall
In Ulefoss, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 50min.On the first day of September in Ulefoss, sunrise is at 06:21 and sunset at 20:24. On the last day of the month, sunrise is at 07:26 and sunset at 18:58 CEST.
Sunshine
In September, the average sunshine in Ulefoss is 7.4h.UV index
The average daily maximum UV index in September in Ulefoss is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ulefoss, Norway
- Average high temperature in September: 13.9°C
The warmest month (with the highest average high temperature) is July (19.6°C).
The month with the lowest average high temperature is January (-2.5°C).
- Average low temperature in September: 6.3°C
The month with the highest average low temperature is July (9.6°C).
The coldest month (with the lowest average low temperature) is February (-7.3°C).
Average pressure in September
Ulefoss, Norway
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is April (1014.6mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in September
Ulefoss, Norway
- Average wind speed in September: 9.1km/h
The windiest month (with the highest average wind speed) is January (10.1km/h).
The calmest month (with the lowest average wind speed) is August (7.9km/h).
Average humidity in September
Ulefoss, Norway
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Ulefoss, Norway
- Average rainfall in September: 61mm
The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Ulefoss, Norway
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in September
Ulefoss, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (277mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Ulefoss, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ulefoss, Norway
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Ulefoss, Norway
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is April (15.6 days).
The month with the least sunshine days is August (11 days).
Average UV index in September
Ulefoss, 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 February (UV index 1).
Average cloud cover in September
Ulefoss, Norway
- Average cloud cover in September: 48
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are June and July (Cloud cover 42).
Average visibility in September
Ulefoss, Norway
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January, February, March and November (7km).
