Ostrava Weather in August
Ostrava in August sees high temperatures, with highs around 25°C (77°F) and overnight lows of 14°C (57°F). Rainfall is fairly high at around 88 mm (3.5 in) on average, so pack waterproofs just in case.
Rainfall in Ostrava in August
Typically, you can expect about 14 days of rain this month, with 88 mm (3.5 in) on average. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Ostrava in August
If you're visiting Ostrava in August, expect perfect temperatures with highs of 25°C (77°F) and overnight lows of 14°C (57°F). August is typically considered a summer month. Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 14°C (57°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions. On average, it is the warmest month of the year.
Sunshine in Ostrava in August
There are approximately 204 hours of sunshine this month, resulting in mostly clear days.
Wind Speed in Ostrava in August
Wind speeds average 2 m/s (4 knots) during August. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.If you're inclined towards comfortable temperatures and drier conditions, August is a good time to visit Ostrava.
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 Ostrava's climate page.
Ostrava Temperature in August
Min Temperature
14°C (57°F)
Max Temperature
25°C (77°F)
Chance of Rain
48%
Precipitation
88 mm (3.5 in)
Rainy days
14 days
Humidity
74%
Windspeed
2 m/s (4 knots)
Sunshine
204 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ostrava typically stay consistent throughout August, with daily highs averaging around 25°C (77°F). Nights are cool, with lows typically ranging from 11°C (52°F) to 14°C (57°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 Ostrava in August
Browse day-by-day weather records for Ostrava spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ostrava historical weather extremes in August
Our historical data for Ostrava spans 1976 to 2025, revealing these weather extremes.
- On August 8, 2013, temperatures climbed to 35°C (95°F), marking the warmest August day on record.
- On August 31, 2010, Ostrava saw its coldest August day with temperatures maxing out at 10°C (50°F).
- Nighttime temperatures dropped to 4°C (39°F) on August 24, 2025, marking the coldest August night on record.
- The heaviest August precipitation occurred on August 31, 2010, when 57 mm (2.2 in) of precipitation fell.
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 →
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What to Wear in Ostrava in August
Warm but pleasant conditions in Ostrava in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Ostrava 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 Ostrava's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Ostrava climate overview or explore weather in Czech Republic.
