August weather forecastKalmar, Sweden
August
Weather in August
As August steps in, Kalmar still experiences a significant extension of summer. Although the daytime temperature slightly draws back from July's peak, the weather remains predominantly balmy. The sea water remains warm enough for swimming, bettering July with a reported temperature around 18.3°C (64.9°F). Consistent with the trend of summer months, August, too, ushers significant rainfall. Nonetheless, the charming weather indulges both residents and visitors in abundant outdoor galas and attractions.Temperature
August's onset records a minor alteration in the average high-temperature to a still pleasant 20.8°C (69.4°F) from July's 21°C (69.8°F). Kalmar, in August, observes a steady average low-temperature of 13.9°C (57°F).Humidity
In Kalmar, Sweden, the average relative humidity in August is 75%.Rainfall
In Kalmar, in August, during 12.6 rainfall days, 30mm (1.18") of precipitation is typically accumulated. Throughout the year, in Kalmar, there are 127.2 rainfall days, and 299mm (11.77") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Sea temperature
August is the month with the warmest seawater in Kalmar, with an average sea temperature of 18.3°C (64.9°F).Note: Swimming becomes less enjoyable for most at a surface water temperature of 18.3°C (64.9°F). As the temperature decreases below 21°C (69.8°F), breathing becomes increasingly difficult.
Daylight
The average length of the day in August is 15h and 7min.On the first day of the month, sunrise is at 04:56 and sunset at 21:05. On the last day of August, sunrise is at 05:56 and sunset at 19:52 CEST.
Sunshine
With an average of 10.4h of sunshine, August has the most sunshine of the year in Kalmar.UV index
In Kalmar, Sweden, the average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 4 in August transforms into this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Kalmar, Sweden
- Average high temperature in August: 20.8°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (1.6°C).
- Average low temperature in August: 13.9°C
The month with the highest average low temperature is July (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (-1.3°C).
Average pressure in August
Kalmar, Sweden
- Average pressure in August: 1014mbar
The months with the highest atmospheric pressure are April and May (1015.4mbar).
The month with the lowest atmospheric pressure is December (1010.2mbar).
Average wind speed in August
Kalmar, Sweden
- Average wind speed in August: 14.2km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is May (14.1km/h).
Average humidity in August
Kalmar, Sweden
- Average humidity in August: 75%
The months with the highest relative humidity are January, February, November and December (86%).
The months with the lowest relative humidity are April and May (71%).
Average rainfall in August
Kalmar, Sweden
- Average rainfall in August: 30mm
The wettest month (with the highest rainfall) is July (36mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in August
Kalmar, Sweden
- Average rainfall days in August: 12.6 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in August
Kalmar, Sweden
- Average snowfall in August: 0mm
The month with the highest snowfall is February (84mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in August
Kalmar, Sweden
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in August
Kalmar, Sweden
- Average sea temperature in August: 18.3°C
The best month for swimming (with the highest average sea temperature) is August (18.3°C).
The coldest month (with the lowest average sea temperature) is March (1.9°C).
Average daylight in August /
Average sunshine in August
Kalmar, Sweden
- Average daylight in August: 15h and 6min
The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in August: 10h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in August
Kalmar, Sweden
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in August
Kalmar, Sweden
- Average UV index in August: 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 August
Kalmar, Sweden
- Average cloud cover in August: 32
The months with the most cloud cover are January and February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Kalmar, Sweden
- Average visibility in August: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).





