September weather forecastLervik, Norway
September
Weather in September
September, the first month of the autumn in Lervik, is still a mild month, with temperature in the range of an average high of 15.2°C (59.4°F) and an average low of 11°C (51.8°F).Temperature
Lervik, Norway, in September experiences a gentle temperature dip, with average high-temperatures reducing from a refreshing 18.5°C (65.3°F) in August to a moderate 15.2°C (59.4°F). Lervik observes an average low-temperature of 11°C (51.8°F) during the slightly cooler nights of September.Humidity
The average relative humidity in September is 78%.Rainfall
In Lervik, during September, the rain falls for 10.2 days and regularly aggregates up to 37mm (1.46") of precipitation. Throughout the year, in Lervik, there are 126.6 rainfall days, and 376mm (14.8") of precipitation is accumulated.Snowfall
May through September are months without snowfall.Sea temperature
In Lervik, the average seawater temperature in September is 15.8°C (60.4°F).Note: Most individuals do not find swimming at 15.8°C (60.4°F) to be enjoyable. As the water temperature declines below 21°C (69.8°F), maintaining control over one's breathing becomes harder.
Daylight
In Lervik, the average length of the day in September is 12h and 50min.On the first day of September in Lervik, sunrise is at 06:15 and sunset at 20:18. On the last day of the month, sunrise is at 07:21 and sunset at 18:52 CEST.
Sunshine
The average sunshine in September is 8.4h.UV index
In Lervik, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Ensure safety - Recommendations to avert sunburn are presented. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lervik, Norway
- Average high temperature in September: 15.2°C
The warmest month (with the highest average high temperature) is July (19.2°C).
The month with the lowest average high temperature is February (0.5°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is July (13.9°C).
The coldest month (with the lowest average low temperature) is February (-2.9°C).
Average pressure in September
Lervik, Norway
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is April (1014.3mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Lervik, Norway
- Average wind speed in September: 17.3km/h
The windiest month (with the highest average wind speed) is December (20.1km/h).
The calmest month (with the lowest average wind speed) is June (14.6km/h).
Average humidity in September
Lervik, Norway
- Average humidity in September: 78%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in September
Lervik, Norway
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is January (17mm).
Average rainfall days in September
Lervik, Norway
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is August (15.7 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in September
Lervik, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (42mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Lervik, Norway
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Lervik, Norway
- Average sea temperature in September: 15.8°C
The best month for swimming (with the highest average sea temperature) is August (18.4°C).
The coldest month (with the lowest average sea temperature) is March (2.8°C).
Average daylight in September /
Average sunshine in September
Lervik, 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: 8h and 24min
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
Lervik, Norway
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is April (19.5 days).
The month with the least sunshine days is August (13.5 days).
Average UV index in September
Lervik, 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
Lervik, Norway
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are June and August (Cloud cover 36).
Average visibility in September
Lervik, Norway
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
