Český Krumlov changes more with the seasons than most towns of its size, because the castle interiors, the theatre, the gardens and the river activities all follow a calendar. There is no wrong time to come, but the best time depends on what you want to do. Here is a season-by-season guide.
Spring: April to early June
Spring is when the town reopens. The castle's guided tour routes and the Baroque Theatre return to their warm-season schedule, the gardens start to green up, and the Vltava is opened for boating with a traditional ceremony in April. Crowds are moderate, apart from long weekends and holidays, and temperatures are cool, so a jacket is needed. This is an excellent time for photographs, with fresh leaves and soft light, and for visiting the full range of interiors without the crush of summer. Showers are common, so keep a rain layer in your bag.
Summer: June to August
Summer is the busiest and warmest time. Everything is open, the castle gardens are at their best, and the revolving auditorium and other summer events add to the programme. Rafting and canoeing run at full strength from May to September. The downside is crowds: day-trip coaches from Prague and Vienna arrive by late morning, lanes are packed at midday, and tours and the theatre sell out. Book castle and theatre slots ahead, start early, and use the middle of the day for a river trip, a cool museum or a long lunch. Evenings, when the groups leave, are lovely.
Autumn: September to early November
Many regular visitors consider early autumn the sweet spot. The weather is often settled, the crowds thin out after the school holidays, the beech woods around Kleť turn gold, and the light is warm. Rafting season winds down in October with a ceremonial closing of the river. As the days shorten, interior schedules shrink, so check opening days before you go. Late autumn is quiet and atmospheric, with mist on the river and lamplit lanes, but the main castle tour routes and the theatre are closed, and the gardens are bare.
Winter: late November to March
Winter is calm and cold. The castle's main guided routes and the Baroque Theatre are closed for the season, and the river is off limits, but the courtyards stay walkable, the Old Town is beautiful under frost or snow, and some museums, the brewery tour and the cafes remain open. In early winter, a shorter self-guided museum and tower option may run at the castle and Hluboká offers a winter basic tour, but dates change from year to year, so confirm before you travel. The Advent programme brings lights, stalls and a festive mood from late November into early January, and these weeks are popular, so book hotels early. Days are short, so start your walking by late morning.
Choosing by priority
If you want the full castle and theatre, pick May, June or September. If you want to raft or canoe, go between May and September. If you want the fewest crowds, choose a weekday in early spring or late autumn. If you want a Christmas atmosphere, go in Advent, but book ahead and expect cold. If you want the best photographs, aim for a clear morning in early autumn or a frosty morning in winter.
Shoulder-season tips
The months either side of summer reward flexibility. Late April and early October can bring both sunshine and showers on the same day, so plan indoor options such as the Egon Schiele Art Centrum or the brewery tour for the wet hours, and keep viewpoints and the river for the dry ones. Hotels are usually easier to book and often cheaper outside July, August and Advent, which is another reason to consider the shoulder months.
Practical advice
Weather in South Bohemia can swing quickly, with warm days and cold nights even in summer, so layers are sensible. Weekends are busier than weekdays in every season, and public holidays bring Czech visitors. Check weekly closing days, as many museums and some restaurants close on Mondays. Whatever the season, wear shoes with grip, because the cobbles can be slick when wet or frosty, and allow time for the many small pleasures of the town, such as a coffee on a terrace or a slow walk by the river at dusk.
