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Olomouc Weather in May
May in Olomouc averages 20°C (68°F) during the day and 9°C (48°F) at night. Quite a bit of rainfall is typical this month, with around 74 mm (2.9 in) on average. An umbrella is a good idea.
Rainfall in Olomouc in May
Historically, approximately 14 days this month are expected to have rain, averaging 74 mm (2.9 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Olomouc in May
May is a excellent month in Olomouc, with 20°C (68°F) during the day and 9°C (48°F) at night. Conditions are often most pleasant around the middle of the day. Nights drop to 9°C (48°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Olomouc in May
The days are predominantly sunny, with an estimated total of around 225 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Olomouc Temperature in May
Min Temperature
9°C (48°F)
Max Temperature
20°C (68°F)
Chance of Rain
46%
Precipitation
74 mm (2.9 in)
Rainy days
14 days
Humidity
67% *
Sunshine
225 hours *
Percentage Sunshine
*
* Data from: Brno, Czech Republic (63 KM, 39 Miles).
Olomouc Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Olomouc - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Olomouc typically stay consistent throughout May, with daily highs averaging around 20°C (68°F). Nights are cool, with lows typically ranging from 7°C (45°F) to 10°C (50°F).
Average temperatures in May
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 May
Historical weather records for Olomouc in May
Browse day-by-day weather records for Olomouc spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Olomouc historical weather extremes in May
The extremes listed below come from historical weather data collected in Olomouc from 1976 through 2026.
- The warmest day in May was on May 29, 2005, with a maximum of 29°C (84°F).
- The lowest overnight temperature recorded in May was -3°C (27°F) (May 1, 1982).
Best Places in Czech Republic in May
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
pleasant
tolerable
unpleasant
poor
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).
What to Wear in Olomouc in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Olomouc in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping4/10 -
Outdoor sports9/10
Olomouc 3-Day Forecast
More climate data for Olomouc
Temperature Rainfall Sunshine Humidity
See the full Olomouc climate overview or explore weather in Czech Republic.
Popular in May
Where to go in May - average daytime high across popular destinations.
Brno
21°C (70°F) Prague20°C (68°F) Mariánské Lázně
18°C (64°F) Český Krumlov
18°C (64°F) Karlovy Vary17°C (63°F) Rokytnice nad Jizerou17°C (63°F) Špindlerův Mlýn17°C (63°F) Harrachov17°C (63°F) Bucket list
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