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
With September's onset, the weather reveals a slight temperature decrease, transitioning from a pleasant 20.3°C (68.5°F) in August to a comfortable 16.5°C (61.7°F). Trolleboda maintains an average of approximately a fresh 11.6°C (52.9°F) during September nights, with only a minimal decrease from the daytime temperature.Humidity
In September, the average relative humidity is 79%.Rainfall
In Trolleboda, in September, it is raining for 13.6 days, with typically 33mm (1.3") of accumulated precipitation. In Trolleboda, during the entire year, the rain falls for 164 days and collects up to 429mm (16.89") of precipitation.Snowfall
In Trolleboda, snow does not fall in May through September.Daylight
In Trolleboda, the average length of the day in September is 12h and 45min.On the first day of September, sunrise is at 06:04 and sunset at 19:53. On the last day of the month, sunrise is at 07:01 and sunset at 18:36 CEST.
Sunshine
In September, the average sunshine is 8.4h.UV index
In Trolleboda, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Exercise prevention - Precautions against solar damage are endorsed. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Trolleboda?
What is the average humidity in September in Trolleboda?
How much does it rain in Trolleboda in September?
When it does not snow in Trolleboda?
Does it snow in Trolleboda in September?
What is the average length of the day in September in Trolleboda?
When are sunrise and sunset in September in Trolleboda?
How many hours of sunshine does Trolleboda have in September?
What is the UV index reading in September in Trolleboda?
Average temperature in September
Trolleboda, Sweden
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (20.8°C).
The months with the lowest average high temperature are January and February (1.8°C).
- Average low temperature in September: 11.6°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-1.1°C).
Average pressure in September
Trolleboda, Sweden
- Average pressure in September: 1015.1mbar
The months with the highest atmospheric pressure are April and May (1015.5mbar).
The month with the lowest atmospheric pressure is December (1010.7mbar).
Average wind speed in September
Trolleboda, Sweden
- Average wind speed in September: 17.5km/h
The windiest month (with the highest average wind speed) is December (19.9km/h).
The calmest month (with the lowest average wind speed) is June (15.1km/h).
Average humidity in September
Trolleboda, Sweden
- Average humidity in September: 79%
The months with the highest relative humidity are January, February, November and December (87%).
The months with the lowest relative humidity are April and May (73%).
Average rainfall in September
Trolleboda, Sweden
- Average rainfall in September: 33mm
The wettest months (with the highest rainfall) are October and November (45mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Trolleboda, Sweden
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is November (16.9 days).
The month with the least rainy days is February (10.9 days).
Average snowfall in September
Trolleboda, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (81mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Trolleboda, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Trolleboda, Sweden
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 36min).
The month with the shortest days is December (Average daylight: 7h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Trolleboda, Sweden
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is April (16.1 days).
The months with the least sunshine days are November and December (7.7 days).
Average UV index in September
Trolleboda, 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
Trolleboda, Sweden
- Average cloud cover in September: 42
The months with the most cloud cover are January, February and December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Trolleboda, 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).
Trolleboda, Sweden
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