September weather forecastKopervik, Norway
September
Weather in September
The first month of the autumn, September, is also a moderate month in Kopervik, Norway, with an average temperature ranging between min 12.2°C (54°F) and max 14.4°C (57.9°F).Temperature
September denotes a minimal variation in the average high-temperature to a moderate 14.4°C (57.9°F) from August's 16.5°C (61.7°F). Kopervik's nights throughout September are marked by an average low temperature of 12.2°C (54°F), a minor drop from the day's high.Humidity
In September, the average relative humidity in Kopervik is 79%.Rainfall
In Kopervik, in September, during 20.3 rainfall days, 123mm (4.84") of precipitation is typically accumulated. Throughout the year, in Kopervik, there are 220.1 rainfall days, and 1290mm (50.79") of precipitation is accumulated.Snowfall
In Kopervik, snow does not fall in June through September.Sea temperature
In Kopervik, Norway, in September, the average water temperature is 14.8°C (58.6°F).Note: It is advised against swimming in 14.8°C (58.6°F) when it drops below 10°C (50°F). Such temperatures can cause extreme cold shock, leading to hyperventilation.
Daylight
The average length of the day in September in Kopervik is 12h and 50min.On the first day of September in Kopervik, sunrise is at 06:37 and sunset at 20:40. On the last day of the month, sunrise is at 07:42 and sunset at 19:14 CEST.
Sunshine
In Kopervik, the average sunshine in September is 5.9h.UV index
In Kopervik, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kopervik, Norway
- Average high temperature in September: 14.4°C
The warmest month (with the highest average high temperature) is August (16.5°C).
The month with the lowest average high temperature is February (4.1°C).
- Average low temperature in September: 12.2°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (2.1°C).
Average pressure in September
Kopervik, Norway
- Average pressure in September: 1012.4mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1006.3mbar).
Average wind speed in September
Kopervik, Norway
- Average wind speed in September: 20.2km/h
The windiest month (with the highest average wind speed) is January (26.7km/h).
The calmest months (with the lowest average wind speed) are June and July (17.5km/h).
Average humidity in September
Kopervik, Norway
- Average humidity in September: 79%
The month with the highest relative humidity is July (81%).
The months with the lowest relative humidity are May, October and November (76%).
Average rainfall in September
Kopervik, Norway
- Average rainfall in September: 123mm
The wettest month (with the highest rainfall) is October (158mm).
The driest month (with the least rainfall) is April (58mm).
Average rainfall days in September
Kopervik, Norway
- Average rainfall days in September: 20.3 days
The month with the highest number of rainy days is December (21.8 days).
The month with the least rainy days is June (14.6 days).
Average snowfall in September
Kopervik, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (62mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Kopervik, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Kopervik, Norway
- Average sea temperature in September: 14.8°C
The best month for swimming (with the highest average sea temperature) is August (16.2°C).
The coldest month (with the lowest average sea temperature) is March (4.8°C).
Average daylight in September /
Average sunshine in September
Kopervik, 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: 5h and 54min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 12min).
Average sunshine days in September
Kopervik, Norway
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is June (13.7 days).
The month with the least sunshine days is December (6.2 days).
Average UV index in September
Kopervik, 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 January (UV index 1).
Average cloud cover in September
Kopervik, Norway
- Average cloud cover in September: 58
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in September
Kopervik, Norway
- Average visibility in September: 10km
The months with the highest visibility are May, June, August and September (10km).
The months with the lowest visibility are January, February, March, April, July, October, November and December (9km).
