Czech Republic in May: Weather, Crowds & What to Expect
Climate Map for May
Average temperature across Czech Republic in May.
City Weather in May
| City | High | Low | Rain | UV | Feels |
|---|---|---|---|---|---|
| Prague | 20° | 10° | 68 mm | high | Cool |
| Brno | 20° | 9° | 58 mm | high | Cool |
| Ostrava | 20° | 8° | 77 mm | high | Cool |
| Plzeň | 20° | 7° | 65 mm | high | Cool |
| Liberec | 18° | 7° | 75 mm | high | Cool |
| Olomouc | 20° | 8° | 65 mm | high | Cool |
| České Budějovice | 20° | 8° | 69 mm | high | Cool |
High / low are average daily temperatures (°C). “Feels” reflects how hot or cold it feels, allowing for humidity.
Prague & Central Bohemia
May is typically one of the most pleasant months-mild, long days with daytime temperatures often between 15-22°C and fewer intense downpours than summer. Gardens around Prague and Kutná Hora are in bloom, and public squares fill with outdoor concerts and markets; it’s ideal for walking tours and river cruises. Crowds begin to build at major sights so book prime-time guided tours ahead; light jacket and comfortable walking shoes are recommended.
South Bohemia & Šumava
May is a comfortable month when countryside roads bloom with rapeseed and the Šumava meadows turn lush; daytime highs often sit between 15-20°C. Canoeing on quieter stretches of the Vltava becomes prime, and the castle courtyards in Český Krumlov are lively without the high-season crush. Insect activity increases-bring repellent for marshy areas and a light jacket for cooler evenings.
Northern Bohemia & Krkonoše (Mountains)
May brings a strong green-up in the foothills and wildflower displays in subalpine meadows, though persistent snowfields can hang on in shady hollows. Trailheads fill with hikers taking advantage of longer days; mountain refuges reopen, but weather is unpredictable-sudden snow or sleet is possible above 1,000-1,200 m. Pack waterproof and insulating layers and be cautious of boggy ground in lower forests.
Bohemian-Moravian Highlands (Vysočina) & South Bohemian Uplands
May delivers reliably pleasant days for walking and castle-hopping-average highs commonly reach 15-20°C and many rural gardens are in full bloom. Ponds and wetlands near Třeboň fill after spring rains, attracting birdwatchers and anglers; expect bugs around marshes and bring repellent. Accommodation in the plateau’s small towns is more available than in summer, and roads are good for independent driving.
South Moravia (Brno, Pálava, Lednice)
May is among the loveliest months in South Moravia-warm, long days and flowering vineyards make it ideal for cycling and château visits. Average highs commonly reach 18-22°C and outdoor wine festivals begin, drawing local crowds on weekends. This is a great time for cellar tours and scenic drives; bring sun protection for midday sun and a light jacket for cooler evenings in hillier spots.
Moravian-Silesian Beskids & Jeseníky (Eastern Mountains)
May welcomes early green and blossom in sheltered areas with pleasant walking temperatures but unpredictable rain showers. Meadows and ridgelines are accessible for hiking though some boggy areas require caution and waterproof gear. This is a good month to avoid crowds at popular peaks and to enjoy cooler, insect-light conditions; pack a light down jacket for chilly mornings.