Average weather for Sundsvall in August
It's pleasantly warm in August in Sundsvall with an average temperature of 20°C. Temperatures this month range from a low of 17°C to a high of 22°C. At night, you can expect temperatures between 9°C and 14°C.
Start of August
The month of August starts in Sundsvall with mild temps, averaging around 21°C during the day and nights around 13°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
Mid August
By mid-August, daytime temps drop to around 20°C, with nights around 12°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of August
By the end of August, the average daytime temperature in Sundsvall is around 19°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.
In August, there is an average of 65 mm of precipitation, spread over 11 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Sundsvall in August |
New York | ||
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20°C | 30°C | |
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22°C | 31°C | |
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17°C | -5°C | |
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65 mm | 79 mm | |
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11 days | 13 days |
UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is August a good time to visit Sundsvall?
Looking for great weather? August is a good time to be in Sundsvall. The temperatures are nice, and there’s not too much rain.
Temperature records
With 28°C in 2020, Sundsvall reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 11°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 3°C to a highest value of 20°C.
Check out the climate of Sundsvall for all months and discover the best travel time
Curious about the weather in other parts of Sweden? Check out the climate and weather for spots like Stockholm, Småland, Malmö, or explore other destinations in Sweden.
Daily Temperature in August in Sundsvall
This chart shows the average daily high and low temperatures in August for Sundsvall, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in August in Sundsvall
The chart below shows the average daily precipitation in August for Sundsvall, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 11 days of precipitation in Sundsvall.
Daily UV index in August in Sundsvall
This chart shows the average daily UV index in August in Sundsvall, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Sundsvall over the years
This chart shows the average temperature in August in Sundsvall, measured in degrees Celsius, over the past few years.
Total precipitation in August in Sundsvall over the years
This chart shows the average precipitation in August in Sundsvall, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in August for Sundsvall
Click on any day in August to get detailed info about the usual weather on that day in Sundsvall. Check out the historical temperatures and precipitation over the past 10 years on this day.































Weather experiences in August in Sundsvall
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Average weather in Sundsvall by month
Click on a month below to see detailed weather info for Sundsvall. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Sundsvall for all months at once