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In Ostrava, May brings pleasant daytime temperatures around 20°C (68°F), with nights cooling to 8°C (46°F). Expect quite a bit of rainfall this month.
If you're inclined towards comfortable temperatures and drier conditions, May is a good time to visit Ostrava.
Pick a month to see the average temperature, rainfall and sunshine in Ostrava - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Ostrava typically stay consistent throughout May, with daily highs averaging around 20°C (68°F). Nights are cold, with lows typically ranging from 6°C (43°F) to 9°C (48°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
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.
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Ostrava.
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 May →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Ostrava climate overview or explore weather in Czech Republic.
Where to go in May - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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