September weather forecastVännäsby, Sweden
September
Weather in September
September, the first month of the autumn in Vännäsby, is still a refreshing month, with an average temperature varying between 13.1°C (55.6°F) and 6.5°C (43.7°F).Temperature
As September commences, the average high-temperature subtly reduces, transitioning from a refreshing 17.9°C (64.2°F) in August to a mild 13.1°C (55.6°F). An average low-temperature of 6.5°C (43.7°F) marks the month of September.Humidity
In September, the average relative humidity is 81%.Rainfall
In Vännäsby, during September, the rain falls for 12.7 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, there are 118.3 rainfall days, and 408mm (16.06") of precipitation is accumulated.Snowfall
Months with snowfall in Vännäsby are January through May, September through December. September is the first month it typically snows in Vännäsby. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. In Vännäsby, Sweden, during the entire year, snow falls for 96.8 days and aggregates up to 1199mm (47.2") of snow.Daylight
In Vännäsby, the average length of the day in September is 13h and 1min.On the first day of the month, sunrise is at 05:25 and sunset at 19:55. On the last day of September, sunrise is at 06:47 and sunset at 18:12 CEST.
Sunshine
In September, the average sunshine is 7.3h.UV index
In Vännäsby, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. To protect against the Sun's most potent rays, avoid direct exposure around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vännäsby, Sweden
- Average high temperature in September: 13.1°C
The warmest month (with the highest average high temperature) is July (19.6°C).
The month with the lowest average high temperature is January (-4.8°C).
- Average low temperature in September: 6.5°C
The month with the highest average low temperature is July (11°C).
The coldest month (with the lowest average low temperature) is February (-9.6°C).
Average pressure in September
Vännäsby, Sweden
- Average pressure in September: 1011.4mbar
The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1005.3mbar).
Average wind speed in September
Vännäsby, Sweden
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is December (12.4km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Vännäsby, Sweden
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is June (66%).
Average rainfall in September
Vännäsby, Sweden
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is December (47mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Vännäsby, Sweden
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Vännäsby, Sweden
- Average snowfall in September: 1mm
The month with the highest snowfall is December (259mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Vännäsby, Sweden
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Vännäsby, Sweden
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 4h and 30min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).
Average sunshine days in September
Vännäsby, Sweden
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is July (15.9 days).
The months with the least sunshine days are February and April (10.8 days).
Average UV index in September
Vännäsby, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Vännäsby, Sweden
- Average cloud cover in September: 50
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in September
Vännäsby, Sweden
- Average visibility in September: 8km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January, February and March (6km).
