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
The onset of September in Uddevalla entails a subtle temperature shift, as the average high-temperature eases from a refreshing 19.5°C (67.1°F) in August to a moderate 15.8°C (60.4°F). Uddevalla reports an average low-temperature of 9.7°C (49.5°F) during the nights of September.Humidity
In Uddevalla, the average relative humidity in September is 81%.Rainfall
In Uddevalla, in September, it is raining for 15 days, with typically 43mm (1.69") of accumulated precipitation. In Uddevalla, during the entire year, the rain falls for 170 days and collects up to 507mm (19.96") of precipitation.Snowfall
In Uddevalla, snow does not fall in June through September.Daylight
In September, the average length of the day in Uddevalla, Sweden, is 12h and 49min.On the first day of September, sunrise is at 06:12 and sunset at 20:11. On the last day of the month, sunrise is at 07:15 and sunset at 18:48 CEST.
Sunshine
In September, the average sunshine is 7.5h.UV index
In September, the average daily maximum UV index in Uddevalla, Sweden, is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Uddevalla?
What is the average humidity in September in Uddevalla?
How many days does it rain in September in Uddevalla?
When it does not snow in Uddevalla?
Does it snow in Uddevalla in September?
How many hours of daylight does Uddevalla have in September?
When are sunrise and sunset in September in Uddevalla?
How many hours of sunshine does Uddevalla have in September?
How high is the UV index in September in Uddevalla?
Average temperature in September
Uddevalla, Sweden
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (20.8°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in September: 9.7°C
The months with the highest average low temperature are July and August (12.3°C).
The coldest month (with the lowest average low temperature) is February (-2.8°C).
Average pressure in September
Uddevalla, Sweden
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is April (1014.4mbar).
The month with the lowest atmospheric pressure is December (1008.3mbar).
Average wind speed in September
Uddevalla, Sweden
- Average wind speed in September: 13.6km/h
The windiest month (with the highest average wind speed) is December (15km/h).
The calmest month (with the lowest average wind speed) is July (12.1km/h).
Average humidity in September
Uddevalla, Sweden
- Average humidity in September: 81%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Uddevalla, Sweden
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is August (58mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Uddevalla, Sweden
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is February (9.4 days).
Average snowfall in September
Uddevalla, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (68mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Uddevalla, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Uddevalla, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 3h and 12min).
Average sunshine days in September
Uddevalla, Sweden
- Average sunshine days in September: 11.8 days
The month with the most sunshine days is April (15.8 days).
The month with the least sunshine days is August (10.3 days).
Average UV index in September
Uddevalla, 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
Uddevalla, Sweden
- Average cloud cover in September: 48
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are June and July (Cloud cover 41).
Average visibility in September
Uddevalla, Sweden
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, November and December (8km).
Uddevalla, Sweden
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