Český Krumlov (Krumlov) weather in May
May in Český Krumlov: nice, rainy, with clean air — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#5 of 12 months in Český Krumlov · #726 of 1413 destinations to visit in May · comfort 80/100 (tier A)
- Days
- 19°C
- Nights
- 8°C
- Wet days
- 16
- Sun
- 10 h
- Humidity
- 74%
- Daylight
- 15 h

Traveller notes on Český Krumlov in May
Other months in Český Krumlov
Forum posters are candid that January and February aren't for everyone, describing the cold as genuinely annoying if you don't enjoy it, with recurring forum threads literally titled asking whether visiting in January is a mistake. Posters note real seasonal closures - castle interiors and the theater shut for winter, though the courtyards stay accessible and the tower remains open in the off season. Posters who do visit in winter describe a real payoff: the town without tourist crowds, with one enthusiastic visitor specifically praising the evening views from the castle vantage point as stunning. Posters generally confirm shuttle transport around the town itself stays reliable even in mid-January conditions. Posters generally rate January as cold and closure-limited but genuinely rewarding for visitors who prioritize a crowd-free experience over convenience.
July is peak season in Český Krumlov, and the forum's advice is entirely about the shape of the day rather than the month: day-trippers from Prague and elsewhere arrive around 11am and leave about 4pm, so the town is jammed in the middle and much quieter either side of it. Their two fixes are really the same fix — be at the castle ticket office before 9am, and stay the night, because the place is described as magical once the coaches have gone. On weather, July averages 24°C but is genuinely wet: sixteen rain-days, the sort of month where an evening indoors is no hardship.
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Český Krumlov climate normals — May
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Český Krumlov in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyDay-tripper hours, school holidays in 4 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Český Krumlov's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherČeský Krumlov's weather peaks June–August.
Best weatherFair weatherToughest weather
What's on in Český Krumlov in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Day-tripper hours
1 Apr – 31 Oct · usuallyDay-tripper crushCrowdedCoaches from Prague, Linz and Vienna unload from about ten and are gone by four, and in between the lane down to the barber's bridge moves at a shuffle. Stay the night and you get the other sixteen hours. Source ↗
- Season
Vltava paddling season
1 May – 20 Sep · usuallySummer season opensCanoes and rubber rafts run the river through the middle of town all summer, with a weir chute under the castle that everyone stops to watch. Rental places shut once the water drops in autumn. Source ↗
Nearby, and something's on
Within 300 km of Český Krumlov — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Český Krumlov?
Český Krumlov in May — FAQ
- Is May a good time to visit Český Krumlov?
- May in Český Krumlov: nice, rainy, with clean air — an excellent time to visit. It ranks #5 of 12 months for Český Krumlov on SeasonMap's comfort score (80/100).
- What is the weather like in Český Krumlov in May?
- In May, Český Krumlov averages a daily high of 18.7°C and a low of 7.8°C, with about 105.7 mm of rain over roughly 15.9 rainy days.
- What is the air quality in Český Krumlov in May?
- Český Krumlov has a mean US Air Quality Index of about 47 in May.
Within 300 km: Prague's Prague Spring music festival on 12 May – 4 Jun, and Berchtesgaden's Eagle's Nest road open around 10 May – 25 Oct.