September weather forecastSilverdalen, Sweden
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Silverdalen, Sweden, with an average temperature varying between 8.7°C (47.7°F) and 16.5°C (61.7°F).Temperature
September signals a slight drop in average high-temperature, sliding from August's pleasant 21.2°C (70.2°F) to an enjoyable 16.5°C (61.7°F). During the month of September, the temperature in Silverdalen generally drops to a low average of 8.7°C (47.7°F).Humidity
The average relative humidity in September in Silverdalen is 80%.Rainfall
In Silverdalen, in September, during 8.3 rainfall days, 15mm (0.59") of precipitation is typically accumulated. Throughout the year, in Silverdalen, there are 110.8 rainfall days, and 257mm (10.12") of precipitation is accumulated.Snowfall
In Silverdalen, 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 05:59 and sunset at 19:54. On the last day of September, sunrise is at 06:59 and sunset at 18:33 CEST.
Sunshine
In September, the average sunshine is 7.5h.UV index
In Silverdalen, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 3 translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. When the Sun is at its strongest around midday, find shade and limit exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Silverdalen, Sweden
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (0.1°C).
- Average low temperature in September: 8.7°C
The month with the highest average low temperature is July (12°C).
The coldest month (with the lowest average low temperature) is January (-3.5°C).
Average pressure in September
Silverdalen, Sweden
- Average pressure in September: 1014.4mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1009.5mbar).
Average wind speed in September
Silverdalen, Sweden
- Average wind speed in September: 12.7km/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 (11.4km/h).
Average humidity in September
Silverdalen, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February, November and December (90%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Silverdalen, Sweden
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is July (37mm).
The driest month (with the least rainfall) is April (8mm).
Average rainfall days in September
Silverdalen, Sweden
- Average rainfall days in September: 8.3 days
The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in September
Silverdalen, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (90mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Silverdalen, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Silverdalen, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 17h and 54min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 54min).
Average sunshine days in September
Silverdalen, Sweden
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is September (19.1 days).
The month with the least sunshine days is February (13.8 days).
Average UV index in September
Silverdalen, Sweden
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Silverdalen, Sweden
- Average cloud cover in September: 50
The months with the most cloud cover are January and February (Cloud cover 71).
The months with the least cloud cover are June and August (Cloud cover 43).
Average visibility in September
Silverdalen, Sweden
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July and August (9km).
The month with the lowest visibility is February (7km).





