August weather forecastUmeå, Sweden
August
Weather in August
August marks the end of summer in Umeå with a gradual decline in average temperatures. It's a period of transition as the weather transitions from summer to early autumn. The conditions remain generally warm but with an occasional coolness creeping into the early morning and late evening hours. Rainfall remains moderately high through the month. Despite the slight decrease in daylight hours, the month highlights an abundance of sunlight.Temperature
August begins with an average high-temperature of a still refreshing 17.4°C (63.3°F), reflecting close similarity to the preceding month. In Umeå, the nighttime temperature averages to a cool 11.8°C (53.2°F) during August.Humidity
In August, the average relative humidity in Umeå is 76%.Rainfall
In Umeå, in August, it is raining for 14 days, with typically 37mm (1.46") of accumulated precipitation. Throughout the year, in Umeå, there are 126.6 rainfall days, and 418mm (16.46") of precipitation is accumulated.Snowfall
In Umeå, Sweden, snow does not fall in June through September.Sea temperature
August is the month with the warmest seawater, with an average sea temperature of 15°C (59°F).Note: Swimming in 15°C (59°F) does not offer a pleasant experience for most individuals. The act of controlling one's breathing becomes progressively difficult as the water temperature goes under 21°C (69.8°F).
Daylight
In Umeå, the average length of the day in August is 16h and 16min.On the first day of the month, sunrise is at 03:50 and sunset at 21:39. On the last day of August, sunrise is at 05:21 and sunset at 19:57 CEST.
Sunshine
In Umeå, the average sunshine in August is 9.9h.UV index
In Umeå, the average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In August, the average maximum UV index of 4 translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Umeå, Sweden
- Average high temperature in August: 17.4°C
The warmest month (with the highest average high temperature) is July (18.4°C).
The months with the lowest average high temperature are January and February (-3.5°C).
- Average low temperature in August: 11.8°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is February (-7.6°C).
Average pressure in August
Umeå, Sweden
- Average pressure in August: 1011.3mbar
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 August
Umeå, Sweden
- Average wind speed in August: 13.5km/h
The windiest month (with the highest average wind speed) is December (17.8km/h).
The calmest month (with the lowest average wind speed) is July (13km/h).
Average humidity in August
Umeå, Sweden
- Average humidity in August: 76%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is June (70%).
Average rainfall in August
Umeå, Sweden
- Average rainfall in August: 37mm
The wettest month (with the highest rainfall) is December (46mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in August
Umeå, Sweden
- Average rainfall days in August: 14 days
The months with the highest number of rainy days are July and August (14 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in August
Umeå, Sweden
- Average snowfall in August: 0mm
The month with the highest snowfall is March (199mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in August
Umeå, Sweden
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in August
Umeå, Sweden
- Average sea temperature in August: 15°C
The best month for swimming (with the highest average sea temperature) is August (15°C).
The coldest months (with the lowest average sea temperature) are February and March (0°C).
Average daylight in August /
Average sunshine in August
Umeå, Sweden
- Average daylight in August: 16h and 18min
The month with the longest days is June (Average daylight: 20h and 36min).
The month with the shortest days is December (Average daylight: 4h and 30min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is June (Average sunshine: 13h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in August
Umeå, Sweden
- Average sunshine days in August: 14.3 days
The month with the most sunshine days is June (15.7 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in August
Umeå, Sweden
- Average UV index in August: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in August
Umeå, Sweden
- Average cloud cover in August: 38
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in August
Umeå, Sweden
- Average visibility in August: 10km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February and March (8km).





