September weather forecastTrekanten, Sweden
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Trekanten, Sweden, with an average temperature ranging between max 16.7°C (62.1°F) and min 11.3°C (52.3°F).Temperature
Trekanten records a mild change in average high-temperature during September, easing from an agreeable 20.8°C (69.4°F) in August to a comfortable 16.7°C (62.1°F). An average low-temperature of 11.3°C (52.3°F) is common during the nights of September.Humidity
In Trekanten, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 10.3 days. Throughout September, 18mm (0.71") of precipitation is accumulated. In Trekanten, during the entire year, the rain falls for 127.2 days and collects up to 299mm (11.77") of precipitation.Snowfall
In Trekanten, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 46min.On the first day of the month, sunrise is at 05:59 and sunset at 19:51. On the last day of September, sunrise is at 06:57 and sunset at 18:32 CEST.
Sunshine
In Trekanten, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Trekanten is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk 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:
Prioritize safety - Recommendations to avert sunburn are shared. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Trekanten, Sweden
- Average high temperature in September: 16.7°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (1.6°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is July (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (-1.3°C).
Average pressure in September
Trekanten, Sweden
- Average pressure in September: 1014.9mbar
The months with the highest atmospheric pressure are April and May (1015.4mbar).
The month with the lowest atmospheric pressure is December (1010.2mbar).
Average wind speed in September
Trekanten, Sweden
- Average wind speed in September: 16.3km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is May (14.1km/h).
Average humidity in September
Trekanten, Sweden
- Average humidity in September: 78%
The months with the highest relative humidity are January, February, November and December (86%).
The months with the lowest relative humidity are April and May (71%).
Average rainfall in September
Trekanten, Sweden
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is July (36mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in September
Trekanten, Sweden
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in September
Trekanten, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (84mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Trekanten, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Trekanten, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in September
Trekanten, Sweden
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in September
Trekanten, Sweden
- Average UV index in September: 4
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
Trekanten, Sweden
- Average cloud cover in September: 39
The months with the most cloud cover are January and February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Trekanten, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).





