Český Krumlov (Krumlov) weather in August
August in Český Krumlov: warm, rainy, with clean air — one of the best months to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#1 of 12 months in Český Krumlov · #221 of 1413 destinations to visit in August · comfort 90/100 (tier S)
- Days
- 25°C
- Nights
- 14°C
- Wet days
- 14
- Sun
- 10 h
- Humidity
- 75%
- Daylight
- 14 h

Traveller notes on Český Krumlov in August
Notes from nearby Prague (142 km away)
Český Krumlov doesn't have its own notes for August yet — these are about Prague, close enough to share the season.
August here runs from the mid-twenties to the low thirties, or turns cool and rainy in the low twenties, and regulars tell you to bring the raincoat either way. Our row gives 26.2C reading as 27C with 83.5mm across 11.5 days - a wetter month than its reputation. The rest of their advice is about people rather than weather: the city is packed, the bridge and the old square are worst on the hour, and the fix is to see them before breakfast and spend the middle of the day in the quarters the crowds skip - the Jewish quarter, Kampa island, Mala Strana, the hill. Nights fall to 16C. The record: humidity 66 percent, 10.5 hours of sun and AQI 51.
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 — August
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Český Krumlov in August
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.
Peak crowdsDay-tripper hours, Summer holidays in Czechia, school holidays in 7 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).
Best weatherČeský Krumlov's weather peaks June–August.
August includes Festival Krumlov.
Best weatherFair weatherToughest weather
What's on in Český Krumlov in August
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 ↗
- Festival
Festival Krumlov
15 Jul – 10 Aug · usuallyMusic festivalThree weeks of classical concerts in the castle riding hall, the gardens and the churches, with a film-score or opera night thrown in to fill the big venues. Programme and tickets go up the previous November. 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 August — FAQ
- Is August a good time to visit Český Krumlov?
- August in Český Krumlov: warm, rainy, with clean air — one of the best months to visit. It ranks #1 of 12 months for Český Krumlov on SeasonMap's comfort score (90/100).
- What is the weather like in Český Krumlov in August?
- In August, Český Krumlov averages a daily high of 25.2°C and a low of 13.8°C, with about 110.6 mm of rain over roughly 13.6 rainy days.
- What is the air quality in Český Krumlov in August?
- Český Krumlov has a mean US Air Quality Index of about 44 in August.
Within 300 km: Prague's Mushroom season around 1 Aug – 31 Oct, and Salzburg's Salzburg Festival on 17 Jul – 30 Aug.