Weather in Kalmar in August 2025
Average weather
Average temperature in Kalmar in August
The expected average maximum temperature in August is +19°C with a maximum of +22°C and a minimum of +11°C.
The average maximum temperature goes down 18% by the end of the month, compared with the beginning of the month, from +18°C to +16°C.
Is Kalmar warm or cold in August?
Kalmar is typically mild in August.
Maximum temperatures go down compared to the previous month from +21°C to +20°C. The minimum temperature also goes up from +13°C to +13°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
August is one of the warmest months in Kalmar, here is the comparison with other months:
Water temperature in Kalmar in August
Water in Kalmar in August is Fresh. It varies from +16°C to +21°C, with an average of +18°C. This is almost similar to the air temperature, which averages +20°C.
The water temperature in August is one of the warmest of the entire year:
Can you swim in Kalmar in August?
Climate in Kalmar in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +21°C | +20°C | +16°C | ||||
| Min. temperature | ||||||
| +5°C | +1°C | -1°C | ||||
| Max. temperature | ||||||
| +30°C | +32°C | +25°C | ||||
| Rainfall | ||||||
| 59 mm | 55 mm | 47 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +18°C | +18°C | +16°C | ||||
| Humidity | ||||||
| 75% | 77% | 80% | ||||
| Air pressure | ||||||
| 1011 HPa | 1012 HPa | 1013 HPa | ||||
| Sunny days | ||||||
| 7 | 7 | 6 | ||||
| Cloudy days | ||||||
| 7 | 8 | 10 | ||||
| Rainy days | ||||||
| 15 | 16 | 14 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as ok as in July. It’s getting colder in August. From +21°C in the day, the average maximum temperature lowers to +20°C. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 59 mm to 55 mm. Humidity rises from 75% to 77%. The average wind speed doesn’t change much during August, staying around 3 m/s. The amount of sunny days stay about the same, averaging 7 sunny days during the month.
September brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Kalmar is gradually decreasing during August, going from 3 m/s to 1 m/s over the course of the month.
Rain
How was the weather last August in Kalmar?
Climate Change over Years
The climate in Kalmar in August has not changed much over the last 43 years.
The average temperature was the lowest in 1987 (+8°C) and the highest in 2020 (+13°C). The driest year was 2018 with only 315 mm of rainfall, and the wettest year was 2023 with 641 mm.
FAQ
Is August a good time to visit Kalmar?
Can you sunbathe in Kalmar in August?
Can you swim in Kalmar in August?
Is Kalmar rainy in August?
Is it sunny in Kalmar in August?
Other cities in Sweden
Monthly weather in Kalmar
Source of the data
For this page, we’ve looked at the typical weather in Kalmar, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.