September weather forecastÖstanbo, Sweden
September
Weather in September
September, the first month of the autumn in Östanbo, is still a refreshing month, with an average temperature fluctuating between 9.8°C (49.6°F) and 15.2°C (59.4°F).Temperature
The arrival of September signals a subtle shift in temperature, down from a comfortable 19.4°C (66.9°F) in August to a mild 15.2°C (59.4°F). During September, the average low-temperature in Östanbo is a chilly 9.8°C (49.6°F).Humidity
In Östanbo, the average relative humidity in September is 78%.Rainfall
In Östanbo, during September, the rain falls for 11.6 days and regularly aggregates up to 28mm (1.1") of precipitation. In Östanbo, during the entire year, the rain falls for 122.7 days and collects up to 356mm (14.02") of precipitation.Snowfall
June through September are months without snowfall in Östanbo.Daylight
In Östanbo, the average length of the day in September is 12h and 55min.On the first day of September, sunrise is at 05:44 and sunset at 19:58. On the last day of the month, sunrise is at 06:56 and sunset at 18:25 CEST.
Sunshine
In September, the average sunshine in Östanbo is 8.1h.UV index
The average daily maximum UV index in September in Östanbo is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 3 during September translates into the following directions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Östanbo, Sweden
- Average high temperature in September: 15.2°C
The warmest month (with the highest average high temperature) is July (19.8°C).
The month with the lowest average high temperature is January (-1.3°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is July (13.1°C).
The coldest month (with the lowest average low temperature) is February (-4.2°C).
Average pressure in September
Östanbo, Sweden
- Average pressure in September: 1012.4mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1006.4mbar).
Average wind speed in September
Östanbo, Sweden
- Average wind speed in September: 13.7km/h
The windiest month (with the highest average wind speed) is December (16.3km/h).
The calmest month (with the lowest average wind speed) is August (11.9km/h).
Average humidity in September
Östanbo, Sweden
- Average humidity in September: 78%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are May and June (70%).
Average rainfall in September
Östanbo, Sweden
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is July (47mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Östanbo, Sweden
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Östanbo, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (113mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Östanbo, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Östanbo, Sweden
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 12min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is June (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in September
Östanbo, Sweden
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is February (12.9 days).
Average UV index in September
Östanbo, Sweden
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Östanbo, Sweden
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in September
Östanbo, Sweden
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are February and March (8km).
