August weather forecastSundsvall, Sweden
August
Weather in August
August experiences a slight dip from July's peak temperatures, yet the weather remains comfortably warm in Sundsvall. The sea temperature reaches its annual maximum of 15°C (59°F), luring beach and marine enthusiasts alike. This month inherits July's weather traits with slightly cooler nights, intensifying the enjoyable contrast of refreshing mornings and warm afternoons. Although August welcomes more overcast skies, it still manages to maintain a summery and warm feel. The balance of sunny and partially cloudy days enhances the allure of this late summertime month.Temperature
The dawn of August in Sundsvall sees an average high-temperature of an enjoyable 18.7°C (65.7°F), subtly contrasting with July's 20.3°C (68.5°F). In August, Sundsvall experiences a temperature dip to an average of 10.5°C (50.9°F) at night.Humidity
The average relative humidity in August is 75%.Rainfall
In Sundsvall, in August, during 13.3 rainfall days, 32mm (1.26") of precipitation is typically accumulated. In Sundsvall, during the entire year, the rain falls for 117.2 days and collects up to 384mm (15.12") of precipitation.Snowfall
In Sundsvall, snow does not fall in June through September.Sea temperature
The month with the warmest seawater is August, with an average sea temperature of 15°C (59°F).Note: Most individuals do not find swimming at 15°C (59°F) to be enjoyable. As the water temperature declines below 21°C (69.8°F), maintaining control over one's breathing becomes harder.
Daylight
The average length of the day in August is 15h and 58min.On the first day of August in Sundsvall, Sweden, sunrise is at 04:15 and sunset at 21:38. On the last day of the month, sunrise is at 05:37 and sunset at 20:04 CEST.
Sunshine
In August, the average sunshine is 9.2h.UV index
The average daily maximum UV index in August in Sundsvall is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 4 in August transforms into this advice:
Prioritize safety - Recommendations to avert sunburn are shared. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sundsvall, Sweden
- Average high temperature in August: 18.7°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-3°C).
- Average low temperature in August: 10.5°C
The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is February (-6.9°C).
Average pressure in August
Sundsvall, Sweden
- Average pressure in August: 1011.4mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1005.9mbar).
Average wind speed in August
Sundsvall, Sweden
- Average wind speed in August: 9.5km/h
The windiest month (with the highest average wind speed) is January (11.9km/h).
The calmest month (with the lowest average wind speed) is August (9.5km/h).
Average humidity in August
Sundsvall, Sweden
- Average humidity in August: 75%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is June (66%).
Average rainfall in August
Sundsvall, Sweden
- Average rainfall in August: 32mm
The wettest month (with the highest rainfall) is July (45mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in August
Sundsvall, Sweden
- Average rainfall days in August: 13.3 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in August
Sundsvall, Sweden
- Average snowfall in August: 0mm
The month with the highest snowfall is January (217mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in August
Sundsvall, Sweden
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in August
Sundsvall, 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 January, February and March (1°C).
Average daylight in August /
Average sunshine in August
Sundsvall, Sweden
- Average daylight in August: 16h and 0min
The month with the longest days is June (Average daylight: 19h and 48min).
The month with the shortest days is December (Average daylight: 5h and 12min).
- Average sunshine in August: 9h and 12min
The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average sunshine days in August
Sundsvall, Sweden
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in August
Sundsvall, Sweden
- Average UV index in August: 4
The months with the highest UV index are June and 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
Sundsvall, Sweden
- Average cloud cover in August: 43
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in August
Sundsvall, Sweden
- Average visibility in August: 9km
The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January, February and March (7km).
