Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September's onset introduces a mild reduction in the average high-temperature, from a refreshing 18.8°C (65.8°F) in August to a mild 15.4°C (59.7°F). During September, the nighttime temperature averages to a cool 10°C (50°F).Humidity
The average relative humidity in September is 79%.Rainfall
In Mysen, in September, during 11.7 rainfall days, 32mm (1.26") of precipitation is typically accumulated. Throughout the year, there are 140.1 rainfall days, and 339mm (13.35") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Mysen.Daylight
In September, the average length of the day is 12h and 51min.On the first day of September, sunrise is at 06:12 and sunset at 20:16. On the last day of the month, sunrise is at 07:18 and sunset at 18:50 CEST.
Sunshine
In September, the average sunshine is 8.2h.UV index
In Mysen, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September in Mysen?
What time are sunrise and sunset in September?
How many hours of sunshine does Mysen have in September?
What is the UV index reading in September?
Average temperature in September
Mysen, Norway
- Average high temperature in September: 15.4°C
The warmest month (with the highest average high temperature) is July (19.8°C).
The months with the lowest average high temperature are January and February (0.1°C).
- Average low temperature in September: 10°C
The months with the highest average low temperature are July and August (12.9°C).
The coldest month (with the lowest average low temperature) is February (-4°C).
Average pressure in September
Mysen, 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
Mysen, Norway
- Average wind speed in September: 15.1km/h
The windiest month (with the highest average wind speed) is December (17.5km/h).
The calmest month (with the lowest average wind speed) is July (13.1km/h).
Average humidity in September
Mysen, Norway
- Average humidity in September: 79%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April and May (71%).
Average rainfall in September
Mysen, Norway
- Average rainfall in September: 32mm
The wettest months (with the highest rainfall) are July and August (44mm).
The driest month (with the least rainfall) is January (15mm).
Average rainfall days in September
Mysen, Norway
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in September
Mysen, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is March (30mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Mysen, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mysen, Norway
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Mysen, Norway
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is July (11 days).
Average UV index in September
Mysen, 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, October, November and December (UV index 2).
Average cloud cover in September
Mysen, Norway
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are June, July and August (Cloud cover 38).
Average visibility in September
Mysen, Norway
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, August and September (10km).
The months with the lowest visibility are January, February, March, July, October, November and December (9km).
