
Karlovy Vary International Film Festival (KVIFF)
Early July, 9 days. World-class film festival, day-trippable from Prague (2h train). Passes ~1,000 CZK/day; individual tickets from 130 CZK. Very sold out — book weeks ahead. See our Karlovy Vary guide.
Prague Proms
Late June to mid-July. Classical crossover: symphonic film scores, opera greatest hits, jazz-classical fusion. Municipal House and Rudolfinum. Tickets 400-1,800 CZK.
United Islands of Prague
4-day free festival on Střelecký ostrov and Kampa Island in late June. Czech and international indie, jazz, world music. Free.
Bohemia Jazz Fest
Free open-air jazz concerts on Old Town Square (usually 4 evenings in July). International lineup. Show up early for a good spot.
Letní letná
Late July–early September. New circus, physical theater, street theater in a big top on Letná Hill. Great with kids. Tickets ~350-650 CZK.
Signal Festival
Mid-October. Light art installations mapped onto Prague’s baroque and gothic facades. Free, evening only, ~4 days. Huge crowds; walk between installations from ~19:00.
Other summer highlights
- Metronome Festival — early June. Big-name rock/pop at Prague’s Výstaviště exhibition grounds.
- Colours of Ostrava — mid-July. Larger indie/rock festival 3 hours east; some Prague-based visitors day-trip.
- Prague Fringe — late May. English-language independent theater in Malá Strana venues.
Beer gardens in summer
See our full Prague beer guide. Summer essentials: Letná Beer Garden (best view), Riegrovy sady (Vinohrady), Náplavka embankment cafés.
Summer gear
- Hat + polarized sunglasses — summer sun on Old Town cobbles is intense.
- Osprey Daylite Plus daypack — for water, layers, festival extras.
- Hydro Flask reusable bottle — Prague tap water is safe (see our water guide).
- Anker Prime 20,000mAh power bank — festivals drain phones fast.
FAQ
What are the biggest festivals in Prague?
Prague Spring (classical), Karlovy Vary Film Festival (day-trippable), Signal Festival (light art in October).
Is Prague hot in summer?
July averages 25°C; heat waves reach 35°C. Most hotels lack A/C. See our Best Time to Visit.