September weather forecastTjelta, Norway
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Tjelta, Norway, with an average temperature varying between 12.1°C (53.8°F) and 14.3°C (57.7°F).Temperature
With September's arrival, Tjelta notes an average high-temperature of a still refreshing 14.3°C (57.7°F), closely following the trend of the preceding month. During September's nights, Tjelta notes a minor temperature decline, reaching an average of 12.1°C (53.8°F).Humidity
In September, the average relative humidity in Tjelta is 79%.Rainfall
In Tjelta, in September, during 19.3 rainfall days, 112mm (4.41") of precipitation is typically accumulated. Throughout the year, in Tjelta, there are 210.6 rainfall days, and 1013mm (39.88") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September in Tjelta is 12h and 49min.On the first day of the month, sunrise is at 06:36 and sunset at 20:37. On the last day of September, in Tjelta, sunrise is at 07:41 and sunset at 19:13 CEST.
Sunshine
In September, the average sunshine in Tjelta is 6.6h.UV index
In Tjelta, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tjelta, Norway
- Average high temperature in September: 14.3°C
The warmest month (with the highest average high temperature) is August (16.3°C).
The month with the lowest average high temperature is February (3.7°C).
- Average low temperature in September: 12.1°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).
Average pressure in September
Tjelta, Norway
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is May (1015mbar).
The month with the lowest atmospheric pressure is December (1006.7mbar).
Average wind speed in September
Tjelta, Norway
- Average wind speed in September: 20.7km/h
The windiest month (with the highest average wind speed) is January (27.4km/h).
The calmest months (with the lowest average wind speed) are June and July (17.2km/h).
Average humidity in September
Tjelta, Norway
- Average humidity in September: 79%
The month with the highest relative humidity is July (81%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in September
Tjelta, Norway
- Average rainfall in September: 112mm
The wettest month (with the highest rainfall) is December (130mm).
The driest month (with the least rainfall) is June (43mm).
Average rainfall days in September
Tjelta, Norway
- Average rainfall days in September: 19.3 days
The month with the highest number of rainy days is December (21.5 days).
The month with the least rainy days is June (13.3 days).
Average snowfall in September
Tjelta, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is March (30mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Tjelta, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Tjelta, Norway
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 18min).
The month with the shortest days is December (Average daylight: 6h and 24min).
- Average sunshine in September: 6h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 24min).
Average sunshine days in September
Tjelta, Norway
- Average sunshine days in September: 9.3 days
The month with the most sunshine days is June (14.4 days).
The month with the least sunshine days is December (5.8 days).
Average UV index in September
Tjelta, Norway
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Tjelta, Norway
- Average cloud cover in September: 53
The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is May (Cloud cover 44).
Average visibility in September
Tjelta, Norway
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July and August (10km).
The months with the lowest visibility are January, February, March, September, October, November and December (9km).





