September weather forecastKragerø, Norway
September
Weather in September
The first month of the autumn, September, is still a mild month in Kragerø, Norway, with an average temperature varying between 15.5°C (59.9°F) and 11.4°C (52.5°F).Temperature
In September, Kragerø experiences a minor shift in meteorological conditions with average high-temperatures marked at a still refreshing 15.5°C (59.9°F), closely mirroring the climate in August. Kragerø, during the nights of September, averages a temperature close to its daytime high, at a fresh 11.4°C (52.5°F).Humidity
In September, the average relative humidity in Kragerø is 76%.Rainfall
In Kragerø, in September, it is raining for 12.9 days, with typically 63mm (2.48") of accumulated precipitation. Throughout the year, there are 140.4 rainfall days, and 697mm (27.44") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Sea temperature
In September, the average sea temperature in Kragerø is 15.9°C (60.6°F).Note: Swimming in 15.9°C (60.6°F) is not a pleasurable activity for the majority of people. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September is 12h and 49min.On the first day of September, sunrise is at 06:21 and sunset at 20:22. On the last day of the month, sunrise is at 07:26 and sunset at 18:58 CEST.
Sunshine
In Kragerø, the average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September in Kragerø is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Guidance to elude sunburn is provided. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kragerø, Norway
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is July (18.9°C).
The month with the lowest average high temperature is February (1°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is February (-1.8°C).
Average pressure in September
Kragerø, Norway
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is April (1014.5mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).
Average wind speed in September
Kragerø, Norway
- Average wind speed in September: 18.7km/h
The windiest months (with the highest average wind speed) are November and December (21.8km/h).
The calmest month (with the lowest average wind speed) is June (15.5km/h).
Average humidity in September
Kragerø, Norway
- Average humidity in September: 76%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Kragerø, Norway
- Average rainfall in September: 63mm
The wettest month (with the highest rainfall) is November (83mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in September
Kragerø, Norway
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is November (14.4 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in September
Kragerø, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (142mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Kragerø, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in September
Kragerø, Norway
- Average sea temperature in September: 15.9°C
The best month for swimming (with the highest average sea temperature) is August (18.3°C).
The coldest month (with the lowest average sea temperature) is March (3.2°C).
Average daylight in September /
Average sunshine in September
Kragerø, 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: 8h and 6min
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
Kragerø, Norway
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is April (19.2 days).
The month with the least sunshine days is November (11.4 days).
Average UV index in September
Kragerø, 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
Kragerø, Norway
- Average cloud cover in September: 43
The month with the most cloud cover is November (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Kragerø, Norway
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).





