September weather forecastBrattvåg, Norway
September
Weather in September
September, the first month of the autumn in Brattvåg, is also a moderate month, with temperature in the range of an average low of 10.9°C (51.6°F) and an average high of 13.4°C (56.1°F).Temperature
The initiation of September records an average high-temperature of a still mild 13.4°C (56.1°F), displaying a near consistency with the previous month. The nights of September in Brattvåg anticipate a slight dip from daytime high temperatures, settling to an average low-temperature of 10.9°C (51.6°F).Humidity
The average relative humidity in September in Brattvåg is 76%.Rainfall
In September, the rain falls for 19.5 days. Throughout September, 107mm (4.21") of precipitation is accumulated. In Brattvåg, during the entire year, the rain falls for 212.1 days and collects up to 1083mm (42.64") of precipitation.Snowfall
In Brattvåg, Norway, snow does not fall in June through September.Sea temperature
In Brattvåg, in September, the average water temperature is 13.5°C (56.3°F).Note: With the appropriate swimsuit, one can swim in 13.5°C (56.3°F) even if temperatures dip below 10°C (50°F); otherwise, be ready for cold shock and breath issues. A fleeting swim around 13°C (55.4°F) is distressing.
Daylight
The average length of the day in September is 12h and 57min.On the first day of September in Brattvåg, sunrise is at 06:23 and sunset at 20:44. On the last day of the month, sunrise is at 07:40 and sunset at 19:07 CEST.
Sunshine
In Brattvåg, the average sunshine in September is 6.6h.UV index
In September, the average daily maximum UV index 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: The maximum daily UV index of 3 during September translates into the following directions:
Ensure safety - Sun damage prevention is strongly urged. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brattvåg, Norway
- Average high temperature in September: 13.4°C
The warmest month (with the highest average high temperature) is August (15.1°C).
The month with the lowest average high temperature is February (3.7°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).
Average pressure in September
Brattvåg, Norway
- Average pressure in September: 1010.3mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1002.9mbar).
Average wind speed in September
Brattvåg, Norway
- Average wind speed in September: 19.7km/h
The windiest month (with the highest average wind speed) is December (26.9km/h).
The calmest month (with the lowest average wind speed) is August (15.1km/h).
Average humidity in September
Brattvåg, Norway
- Average humidity in September: 76%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is November (70%).
Average rainfall in September
Brattvåg, Norway
- Average rainfall in September: 107mm
The wettest month (with the highest rainfall) is December (134mm).
The driest month (with the least rainfall) is June (47mm).
Average rainfall days in September
Brattvåg, Norway
- Average rainfall days in September: 19.5 days
The month with the highest number of rainy days is August (20.4 days).
The months with the least rainy days are February and June (15.3 days).
Average snowfall in September
Brattvåg, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is February (134mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Brattvåg, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Brattvåg, Norway
- Average sea temperature in September: 13.5°C
The best month for swimming (with the highest average sea temperature) is August (14.1°C).
The coldest month (with the lowest average sea temperature) is March (5.3°C).
Average daylight in September /
Average sunshine in September
Brattvåg, Norway
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 19h and 54min).
The month with the shortest days is December (Average daylight: 5h and 6min).
- Average sunshine in September: 6h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in September
Brattvåg, Norway
- Average sunshine days in September: 8.9 days
The month with the most sunshine days is June (11.8 days).
The month with the least sunshine days is December (7.2 days).
Average UV index in September
Brattvåg, Norway
- Average UV index in September: 3
The months with the highest UV index are 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
Brattvåg, Norway
- Average cloud cover in September: 54
The month with the most cloud cover is March (Cloud cover 64).
The month with the least cloud cover is May (Cloud cover 51).
Average visibility in September
Brattvåg, Norway
- Average visibility in September: 10km
The months with the highest visibility are June and September (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, October, November and December (9km).
