September weather forecastÖsterbymo, Sweden
September
Weather in September
The first month of the autumn, September, is also a moderate month in Österbymo, Sweden, with an average temperature varying between 15.8°C (60.4°F) and 8.4°C (47.1°F).Temperature
As September begins, there is a minor decrease in the average high-temperature, softly falling from a pleasant 20.3°C (68.5°F) in August to a refreshing 15.8°C (60.4°F). Österbymo, in September, witnesses an average low-temperature of 8.4°C (47.1°F).Humidity
The average relative humidity in September is 81%.Rainfall
In Österbymo, in September, it is raining for 10.7 days, with typically 21mm (0.83") of accumulated precipitation. Throughout the year, there are 127.5 rainfall days, and 316mm (12.44") of precipitation is accumulated.Snowfall
In Österbymo, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 47min.On the first day of the month, sunrise is at 06:00 and sunset at 19:57. On the last day of September, sunrise is at 07:01 and sunset at 18:35 CEST.
Sunshine
In Österbymo, the average sunshine in September is 7.3h.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 the ordinary person.Note: In September, a daily UV index of 3 turns into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Österbymo, Sweden
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in September: 8.4°C
The month with the highest average low temperature is July (11.7°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).
Average pressure in September
Österbymo, Sweden
- Average pressure in September: 1014.2mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).
Average wind speed in September
Österbymo, Sweden
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is December (14.1km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in September
Österbymo, Sweden
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Österbymo, Sweden
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is August (40mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in September
Österbymo, Sweden
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Österbymo, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (120mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Österbymo, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Österbymo, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 48min).
Average sunshine days in September
Österbymo, Sweden
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is April (15.8 days).
The month with the least sunshine days is February (11.8 days).
Average UV index in September
Österbymo, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Österbymo, Sweden
- Average cloud cover in September: 53
The months with the most cloud cover are February and December (Cloud cover 72).
The month with the least cloud cover is June (Cloud cover 45).
Average visibility in September
Österbymo, Sweden
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January and February (7km).
