September weather forecastBotnhamn, Norway
September
Weather in September
The first month of the autumn, September, is also a frosty month in Botnhamn, Norway, with temperature in the range of an average low of 5.8°C (42.4°F) and an average high of 9.9°C (49.8°F).Temperature
Botnhamn's progression into September involves a gentle drop in the average high-temperature, from a moderate 13.3°C (55.9°F) in August to a frosty 9.9°C (49.8°F). A consistent average low-temperature of 5.8°C (42.4°F), with a minor variance from the daytime highs, is noted during the nights of September.Humidity
In September, the average relative humidity is 82%.Rainfall
In September, in Botnhamn, the rain falls for 19.3 days. Throughout September, 86mm (3.39") of precipitation is accumulated. Throughout the year, there are 151.6 rainfall days, and 925mm (36.42") of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Botnhamn. September is the first month it typically snows in Botnhamn. Throughout September, in the average 0.6 snowfall days, it receives 5mm (0.2") of snow. Throughout the year, in Botnhamn, Norway, there are 109.7 snowfall days, and 2343mm (92.24") of snow is accumulated.Daylight
The average length of the day in September is 13h and 19min.On the first day of the month, sunrise is at 05:09 and sunset at 20:27. On the last day of September, sunrise is at 07:01 and sunset at 18:14 CEST.
Sunshine
In Botnhamn, the average sunshine in September is 5.5h.UV index
In Botnhamn, the average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 2 during September leads to these instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Botnhamn, Norway
- Average high temperature in September: 9.9°C
The warmest month (with the highest average high temperature) is July (14°C).
The months with the lowest average high temperature are January and February (-3.7°C).
- Average low temperature in September: 5.8°C
The month with the highest average low temperature is July (8.8°C).
The coldest month (with the lowest average low temperature) is February (-7.8°C).
Average pressure in September
Botnhamn, Norway
- Average pressure in September: 1008.5mbar
The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1000.8mbar).
Average wind speed in September
Botnhamn, Norway
- Average wind speed in September: 12.3km/h
The windiest month (with the highest average wind speed) is March (17.5km/h).
The calmest month (with the lowest average wind speed) is July (9.5km/h).
Average humidity in September
Botnhamn, Norway
- Average humidity in September: 82%
The month with the highest relative humidity is April (87%).
The months with the lowest relative humidity are June and July (79%).
Average rainfall in September
Botnhamn, Norway
- Average rainfall in September: 86mm
The wettest month (with the highest rainfall) is March (99mm).
The driest month (with the least rainfall) is July (50mm).
Average rainfall days in September
Botnhamn, Norway
- Average rainfall days in September: 19.3 days
The month with the highest number of rainy days is September (19.3 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in September
Botnhamn, Norway
- Average snowfall in September: 5mm
The month with the highest snowfall is March (485mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Botnhamn, Norway
- Average snowfall days in September: 0.6 days
The month with the highest number of snowfall days is March (21.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Botnhamn, Norway
- Average daylight in September: 13h and 18min
The month with the longest days is August (Average daylight: 18h and 0min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).
- Average sunshine in September: 5h and 30min
The month with the most sunshine is August (Average sunshine: 8h and 0min).
The month with the least sunshine is December (Average sunshine: 0h and 0min).
Average sunshine days in September
Botnhamn, Norway
- Average sunshine days in September: 9.4 days
The month with the most sunshine days is January (13.3 days).
The month with the least sunshine days is March (6.7 days).
Average UV index in September
Botnhamn, Norway
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are February, March, October, November and December (UV index 1).
Average cloud cover in September
Botnhamn, Norway
- Average cloud cover in September: 63
The month with the most cloud cover is March (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 57).
Average visibility in September
Botnhamn, Norway
- Average visibility in September: 9km
The months with the highest visibility are June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April and May (8km).
