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When to go · Prague

Prague in September

Great month. Warm; crowds thin.

Key facts

Verdict
Great
Temperature
20°C (68°F) / 10°C (50°F)
average high / low
Rain days
8
Crowds
Medium
Czech Republic overall
Prices
Medium
Czech Republic overall

Verdict

GreatVoykit month rating for Prague

Warm; crowds thin.

All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.

Is another month better than September?

No other month rates higher than September for Prague in this guide.

Weather in September

Long-term averages
  • PragueHighs around 20 °C (68 °F), lows around 10 °C (50 °F), rain on about 8 days
  • Bohemia (Prague, Český Krumlov), Czech Republic · Prague, Kutná Hora, Český Krumlov, Karlovy Varybest weather

    Continental: grey, frosty winters around 0 °C (32 °F), warm summers with 30 °C (86 °F) spells and thunderstorms; May–June and September are the sweet spots.

Autumn season

Warm days in September, colour in the parks and thinner crowds.

Watch: Damp and grey in November.

Festivals and holidays

Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.

  • St Wenceslas Day (Czech Statehood Day) check

    28 September (public holiday) · Wenceslas Square

    Shops closed; a small celebration by the statue.

  • Wine harvest and cellar openings check

    September to October (check) · Vinohrady, Troja and nearby vineyards

    Young wine (burčák) sold at markets and stalls; a seasonal treat.

Crowds and prices

Crowds · Czech Republic overall
Medium
Prices · Czech Republic overall
Medium

Czech Republic overall: Best all-round month: warm days, fewer groups, wine harvest in Moravia.

Compare two months

Weather, crowds and prices for any two months in Prague, side by side.

  • Verdict

    Sep: Great

    May: Great

  • Daytime high

    Sep: 20 °C (68 °F)

    May: 20 °C (68 °F)

  • Night low

    Sep: 10 °C (50 °F)

    May: 9 °C (48 °F)

  • Rain days

    Sep: 8 (better)

    May: 11

  • Crowds

    Sep: Medium

    May: High

  • Prices

    Sep: Medium

    May: High

  • Festivals listed

    Sep: 2

    May: 4

September: Warm; crowds thin.

May: Warm; good light.

Prague: figures are long-term averages from this guide, not a forecast.

What to pack

  • A warm layer for the evenings

Build the full packing list for your trip →

Across Czech Republic in September →