Het weer in Český Krumlov (Krumlov) in juni

Linz forum regulars, drawing on the wider Austria conversation, call June warm and sunny but with some rain sometimes heavy — a genuine mixed bag, temperatures “easily reaching 30°C on sunny days,” with the honest caveat that Europe doesn't have a special rainy season, it can rain every month everywhere. Rain here rarely settles in for a full day; the more common pattern is thunderstorms building in the late afternoon after a warm, humid buildup. School holidays don't start until late June, so most of the month runs noticeably less crowded than July or August, even as the very end of June can turn both hot and busy at once. A waterproof jacket carried regardless of the morning forecast is the standing advice. Our record: 24.4°C days, 14.4°C nights, 13.6 rain days and a 14.4kph wind — warm with genuinely frequent rain, matching the “warm and sunny, real rain risk” read.

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.