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Prague weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit Prague?
For a warm holiday, the best week has been 19–25 July (Weather Index 95). Favourable start dates for a 7-day trip run from 16 July to 24 July. July and August are warmest (26°C), March is driest and June and July have the most sun.
- Warmest
- July and August 26°C
- Coolest
- January 4°C
- Driest
- March 29% rain-day chance
- Wettest
- June 42% rain-day chance
- Sunniest
- June and July 13 hours a day
A rain day has 1 mm or more, snow included, so a short shower counts. Monthly averages below give the amounts.
Monthly averages in Prague
Prague historical monthly estimates, 2016–2025. Temperatures and sunshine are daily averages.
| Month | High (°C) | Low (°C) | Rain-day chance (%) | Expected rain days | Precipitation (mm/month) | Sunshine (hours/day) |
|---|---|---|---|---|---|---|
| January | 4.0 | -0.8 | 35.8 | 11.1 | 39.6 | 4.2 |
| February | 6.7 | 0.4 | 33.9 | 9.5 | 37.5 | 6.1 |
| March | 10.4 | 2.1 | 28.7 | 8.9 | 36.3 | 8.1 |
| April | 15.1 | 5.2 | 31.7 | 9.5 | 40.5 | 10.0 |
| May | 19.3 | 9.3 | 37.1 | 11.5 | 73.3 | 11.1 |
| June | 24.8 | 14.3 | 42.0 | 12.6 | 94.2 | 12.6 |
| July | 25.8 | 15.2 | 37.1 | 11.5 | 64.6 | 12.5 |
| August | 26.0 | 15.3 | 37.1 | 11.5 | 83.6 | 11.0 |
| September | 21.2 | 11.5 | 29.7 | 8.9 | 67.3 | 8.9 |
| October | 15.2 | 7.9 | 35.2 | 10.9 | 52.5 | 6.6 |
| November | 8.0 | 3.0 | 31.7 | 9.5 | 43.8 | 4.3 |
| December | 5.0 | 0.9 | 31.9 | 9.9 | 44.4 | 3.9 |
Each month averages its own days. Precipitation includes snow. About the data
Sources
Open-Meteo · 1 Jan 2016 – 31 Dec 2025
- Open-Meteo Historical Weather API
- Local days, 2016–2025, every year weighted equally. Each weekly chart averages its own seven days, without smoothing.
- Shading shows the 10th–90th percentile of past days, not forecast confidence.
- A rain day has at least 1 mm, snow included. The last weekly period has eight days.
- Wind is the average daytime (10:00–18:00) maximum, not gusts. Daylight is calculated from latitude. Missing readings stay blank.
- Mugginess (dew point) comes from the original daily summaries, on UTC days.
- The live two-week forecast comes from the Open-Meteo Weather Forecast API. The Weather Index does not use it.