Karolina Sedlackova
Prague sits at 50°N — the same latitude as Vancouver, Frankfurt, and southern England. That means real winters, warm summers, long summer daylight, and short winter days. This is the practical weather guide: what to expect month by month, how to pack, and when weather will affect your travel plans.
Quick summary
- Coldest month: January (avg high 2°C, low -4°C).
- Hottest month: July (avg high 25°C; heat waves 35°C+ some years).
- Wettest month: June-July (thunderstorm season).
- Driest month: February.
- Best month, weather-only: May or September.
The full year, month by month
January — cold, quiet, cheap
Average high 2°C, low -4°C. Some snow, more grey. Short days (sunrise 07:45, sunset 16:15). Hotels are at annual low. Best for museum-heavy trips and coffee-house afternoons. Bring proper cold-weather gear.
February — the coldest days, driest month
Average high 4°C, low -3°C. Statistically the driest month. Snow more likely early in month. Days lengthen noticeably by month’s end.
March — the transition
Average high 9°C, low 0°C. Wildly variable — some years still winter, some already spring. Layers essential. Prague Spring festival prep starts.
April — spring arrives
Average high 15°C, low 4°C. Cherry blossoms in Petřín Park and castle gardens (typically mid-April). Beer gardens start opening. Rain likely; bring waterproofs.
May — start of the sweet spot
Average high 20°C, low 9°C. Excellent weather most days. Prague Spring Music Festival mid-May to early June. Hotel prices climb; book 2-3 months out.
June — long days, warm evenings
Average high 23°C, low 12°C. Sunset around 21:00; twilight until 22:30. Thunderstorm season begins — brief afternoon showers common.
July — hot, crowded, thunderstormy
Average high 25°C, low 14°C. Occasional 35°C+ heat waves. Most Prague hotels do NOT have air conditioning — check before booking summer stays. Afternoon storms common.
August — similar to July, locals leave
Average high 25°C, low 13°C. Many small restaurants close for 2-3 weeks (dovolená). If a heat wave hits, avoid.
September — the best month overall
Average high 20°C, low 10°C. Comfortable, crisp mornings, warm afternoons. Signal Festival returns. Beer gardens still open. Book ahead.
October — autumn colors, cooler
Average high 14°C, low 5°C. Foliage in Petřín and Vyšehrad peaks mid-month. Rain likely; bring layers and waterproofs.
November — grey, damp, quiet — then markets
Average high 7°C, low 1°C. First three weeks are the year’s cheapest hotel prices. Christmas markets open the last Saturday of November — see our Christmas markets guide.
December — cold, magical, expensive
Average high 3°C, low -3°C. Christmas markets in full swing. Snow possible; ice on cobblestones is real. Highest hotel prices of the year over Christmas week and New Year.
Rain and thunderstorms
Prague averages 500-550mm of rain per year — comparable to Berlin. Rain is spread throughout the year with a slight peak in June-July (thunderstorm season). Winter precipitation often falls as snow or sleet.
Snow expectations
Prague averages 25-30 snow days per year, mostly December-February. Snow rarely accumulates for long in the city center (traffic and warm buildings melt it), but suburbs and rooftops hold snow for days. The city looks spectacular under fresh snow — worth a return visit if you catch it.
Air quality
Winter (November-February) can bring smog days due to residential heating and temperature inversions in the Prague basin. If you have asthma, monitor local air quality index (chmi.cz) during cold spells.
What to pack, by season
Winter (Nov-Feb)
- Columbia Bugaboo insulated jacket — three-in-one; handles Prague’s temperature range.
- Merino wool base layers — the difference between comfortable and cold.
- Waterproof winter boots with grip — cobblestones + ice are dangerous.
Spring/Autumn (Mar-May, Sep-Oct)
- Layers. Prague mornings can be 8°C and afternoons 22°C in shoulder seasons.
- Light waterproof jacket for the frequent showers.
- Merrell Moab 3 hiking shoes — comfortable on cobblestones, grip in rain.
Summer (Jun-Aug)
- Light breathable clothes; Prague summers can be genuinely hot.
- Hat + polarized sunglasses.
- Reusable water bottle — Prague tap water is drinkable and cold.
- Portable fan for hotel rooms without A/C.
When weather will disrupt travel plans
- Heavy snow (rare): Trams still run; long-distance trains may delay 15-30 min.
- Heat waves: Metros and non-A/C hotels become unpleasant. Plan outdoor activities morning/evening.
- Thunderstorms: Brief but intense. Cafés are your friends. Ferry service and open-air events may pause.
- Ice on cobblestones: Real risk in Old Town in January-February. Proper boots essential.
Weather-safe indoor Prague
- Coffee houses (Café Louvre, Café Savoy, Kafka Snob) — the classic wet-day activity.
- Museum of Communism, National Museum, Mucha Museum — all covered.
- Beer halls (U Zlatého Tygra, U Medvídků) — indoor cultural experience.
- Municipal House, Rudolfinum — concerts.
- Palladium mall, Nový Smíchov — shopping if all else fails.
FAQ
What’s the best month for Prague weather?
May or September. Both give you 18-22°C highs, low rain, and long-enough days.
Does it snow in Prague?
Yes, 25-30 days per year on average. Rarely enough to disrupt travel.
Is Prague hot in summer?
July averages 25°C but heat waves of 35°C+ happen. Most hotels lack A/C.
When’s the cheapest weather-good time to visit?
Late April, early May, mid-September, and late October — shoulder seasons.
