Brno Weather in August
Brno in August sees high daytime temperatures of 27°C (81°F) and nighttime lows of 15°C (59°F). Rainfall is fairly high this month at around 72 mm (2.8 in), so pack a rain jacket to stay dry.
Rainfall in Brno in August
Records from the past 30 years suggest around 12 days of rain, with 72 mm (2.8 in) average for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Brno in August
August is a perfect month in Brno, with 27°C (81°F) during the day and 15°C (59°F) at night. The month of August belongs to the summer season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 15°C (59°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. It's the warmest month of the year on average, so summer clothing is the way to go.
Sunshine in Brno in August
Expect sunny days throughout the month, with an estimated 244 hours of sunshine. This makes it a pleasant time to visit Brno.
Wind Speed in Brno in August
Average wind speeds reach 3 m/s (6 knots) in August, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August and September typically offer the best circumstances for Brno.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Czech Republic, check out our Brno's climate page.
Brno Temperature in August
Min Temperature
15°C (59°F)
Max Temperature
27°C (81°F)
Chance of Rain
41%
Precipitation
72 mm (2.8 in)
Rainy days
12 days
Humidity
68%
Windspeed
3 m/s (6 knots)
Sunshine
244 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Brno typically stay consistent throughout August, with daily highs averaging around 27°C (81°F). Nights are pleasant, with lows typically ranging from 12°C (54°F) to 16°C (61°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Brno in August
Browse day-by-day weather records for Brno spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Brno historical weather extremes in August
Based on 49 years of weather observations in Brno between 1976 and 2025, these are the recorded extremes.
- Brno recorded its highest August temperature of 38°C (100°F) on August 8, 2013.
- The lowest overnight temperature recorded in August was 3°C (37°F) (August 26, 1980).
Best Places in Czech Republic in August
Find out more about the weather in Czech Republic and which places have the best travel conditions in this month. See all of Czech Republic in August →
perfect weather
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tolerable
unpleasant
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What to Wear in Brno in August
Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Brno in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Czech Republic, check out our Brno's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Brno climate overview or explore weather in Czech Republic.
