Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In September, the average high-temperature marginally decreases from a pleasant 20.7°C (69.3°F) in August to an enjoyable 16.1°C (61°F). Bollstanäs records an average low-temperature of 9.5°C (49.1°F) throughout the month of September.Humidity
The average relative humidity in September in Bollstanäs is 80%.Rainfall
In Bollstanäs, in September, it is raining for 12.9 days, with typically 24mm (0.94") of accumulated precipitation. In Bollstanäs, Sweden, during the entire year, the rain falls for 137.4 days and collects up to 358mm (14.09") of precipitation.Snowfall
In Bollstanäs, snow does not fall in June through September.Daylight
In Bollstanäs, Sweden, the average length of the day in September is 12h and 51min.On the first day of the month, sunrise is at 05:45 and sunset at 19:50. On the last day of September, in Bollstanäs, sunrise is at 06:52 and sunset at 18:23 CEST.
Sunshine
In Bollstanäs, the average sunshine in September is 8h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 3 suggests these recommendations:
Take precautions - Protection against skin and eye damage is obliged. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What are the temperatures in Bollstanäs in September?
What is the average humidity in September in Bollstanäs?
How many days does it rain in September in Bollstanäs?
When it does not snow in Bollstanäs?
Does it snow in Bollstanäs in September?
What is the average length of the day in September in Bollstanäs?
When is the sunrise / sunset in September in Bollstanäs?
How many hours of sunshine does Bollstanäs have in September?
What is the UV index intensity in September in Bollstanäs?
Average temperature in September
Bollstanäs, Sweden
- Average high temperature in September: 16.1°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (-0.7°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is July (13°C).
The coldest months (with the lowest average low temperature) are January and February (-4.2°C).
Average pressure in September
Bollstanäs, Sweden
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).
Average wind speed in September
Bollstanäs, Sweden
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is December (17.2km/h).
The calmest months (with the lowest average wind speed) are July and August (11.9km/h).
Average humidity in September
Bollstanäs, Sweden
- Average humidity in September: 80%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Bollstanäs, Sweden
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Bollstanäs, Sweden
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in September
Bollstanäs, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (106mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Bollstanäs, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bollstanäs, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 24min).
Average sunshine days in September
Bollstanäs, Sweden
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in September
Bollstanäs, 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
Bollstanäs, Sweden
- Average cloud cover in September: 45
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Bollstanäs, Sweden
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February and March (8km).
Bollstanäs, Sweden
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