September weather forecastVallsund, Sweden
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Vallsund, Sweden, with an average temperature fluctuating between 15.5°C (59.9°F) and 11.3°C (52.3°F).Temperature
Vallsund records a mild change in average high-temperature during September, easing from an enjoyable 19.4°C (66.9°F) in August to a still refreshing 15.5°C (59.9°F). Registering an almost steady temperature, Vallsund's nights in September see an average low of 11.3°C (52.3°F).Humidity
In Vallsund, Sweden, the average relative humidity in September is 79%.Rainfall
In Vallsund, in September, it is raining for 13 days, with typically 33mm (1.3") of accumulated precipitation. In Vallsund, during the entire year, the rain falls for 151 days and collects up to 419mm (16.5") of precipitation.Snowfall
June through September are months without snowfall in Vallsund.Daylight
In Vallsund, the average length of the day in September is 12h and 49min.On the first day of the month, sunrise is at 05:51 and sunset at 19:51. On the last day of September, sunrise is at 06:55 and sunset at 18:27 CEST.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vallsund, Sweden
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is July (19.7°C).
The month with the lowest average high temperature is January (0.7°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is July (14.3°C).
The coldest month (with the lowest average low temperature) is February (-2.2°C).
Average pressure in September
Vallsund, Sweden
- Average pressure in September: 1013.8mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in September
Vallsund, Sweden
- Average wind speed in September: 18.2km/h
The windiest month (with the highest average wind speed) is December (21.9km/h).
The calmest month (with the lowest average wind speed) is July (15.1km/h).
Average humidity in September
Vallsund, Sweden
- Average humidity in September: 79%
The months with the highest relative humidity are January, February, November and December (86%).
The months with the lowest relative humidity are May and June (75%).
Average rainfall in September
Vallsund, Sweden
- Average rainfall in September: 33mm
The wettest months (with the highest rainfall) are July and August (48mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Vallsund, Sweden
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Vallsund, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (76mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Vallsund, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Vallsund, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 18min).
The month with the shortest days is December (Average daylight: 6h and 24min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is June (Average sunshine: 12h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Vallsund, Sweden
- Average sunshine days in September: 14 days
The month with the most sunshine days is April (15.4 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in September
Vallsund, Sweden
- Average UV index in September: 4
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
Vallsund, Sweden
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Vallsund, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, May, October, November and December (9km).
