Brno enjoys a Central European continental climate with warm summers, cold winters, and distinct spring and autumn seasons. The best times to visit are May–June and September–October, when temperatures are pleasant, daylight hours are generous, and the city's outdoor café and wine-bar culture is in full swing. Summer is lively but can be hot, and autumn is especially beautiful in the Moravian countryside.
Brno enjoys a Central European continental climate with warm summers, cold winters, and distinct spring and autumn seasons. The best times to visit are May–June and September–October, when temperatures are pleasant, daylight hours are generous, and the city's outdoor café and wine-bar culture is in full swing. Summer (July–August) is lively but can be hot, and autumn is especially beautiful in the Moravian countryside. Winter brings cold temperatures and occasional snow, but also festive Christmas markets and a quieter, more authentic atmosphere. Brno's university calendar means the city is at its most energetic from October to June, with summer bringing a quieter but still enjoyable pace.
Spring (March–May)
Spring is one of the best seasons to visit Brno. March can still be chilly (average 8–12°C) with occasional rain, but April brings warmer days (12–18°C), blossoms in Lužánky Park, and the reopening of outdoor terraces. May is arguably the finest month: temperatures reach a comfortable 18–22°C, the surrounding Moravian vineyards are lush and green, and the city feels refreshed. The Brno Marathon typically runs in April, and several cultural festivals kick off from May onwards. Hotel rates in spring are moderate and rooms are generally easy to find outside trade-fair weekends.
Summer (June–August)
Summer is peak season for Brno tourism. June is excellent — warm (20–25°C), long days, outdoor concerts, and beer gardens full of locals. July and August are the hottest months, with temperatures regularly reaching 28–32°C and occasionally exceeding 35°C during heat waves. The city empties somewhat as students leave, giving the centre a slightly different, quieter character. This is the season for outdoor events: open-air cinema at Špilberk Castle, the Brno Open (tennis), and the Czech Grand Prix motorcycle race in August, which attracts huge crowds to the city and requires advance booking across all accommodation. If you visit in August, be prepared for heat and book well ahead.
Autumn (September–October)
September is a superb month to visit. Temperatures cool pleasantly to 18–22°C, the summer crowds thin, and South Moravia enters harvest season — the vineyards around Valtice, Mikulov, and the Pálava Hills turn golden and the wine cellars begin pressing the new vintage. Burčák, a partially fermented young wine, appears in markets and wine bars from late August through October and is a uniquely Moravian seasonal treat. The Brno International Music Festival runs through September, and the city's cultural programme is at its richest. October sees temperatures drop to 10–15°C with more rain, but the autumn foliage in the Moravian countryside is stunning and hotel rates are low.
Winter (November–February)
Winter in Brno is cold and grey, with average temperatures between -2°C and 5°C and occasional snowfall in January and February. However, the city does not shut down. The Brno Christmas Market on Náměstí Svobody and Zelný trh runs through December and is among the best in Moravia — smaller and more local in character than the Prague or Vienna equivalents. Glühwein (svařák), roasted chestnuts, and traditional Moravian pastries make it genuinely charming. January and February are the quietest and cheapest months, ideal for visitors who want great-value hotels, uncrowded museums, and the cosy atmosphere of Brno's wine bars and jazz clubs without competing with trade-fair crowds.
Festivals and Events
Brno's event calendar is surprisingly packed for a city of its size. The Brno International Music Festival (September–October) is one of the oldest classical music festivals in Central Europe, drawing world-class performers to historic venues including Villa Tugendhat. Ignis Brunensis, an international fireworks competition, lights up the Brno reservoir on successive Saturdays in May–June and draws tens of thousands of spectators. The Masters of Rock festival in nearby Vizovice (July) is one of Central Europe's premier heavy metal events. The Christmas Market runs late November through Christmas Eve. For wine lovers, the Vinné trhy wine markets in the old town occur throughout spring and autumn, offering tastings from dozens of Moravian producers.