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Holiday Weather Rewind
Photo of Prague
Photo: Moyan Brenn from Italy · CC BY 2.0

🇨🇿 Weather in Prague in May

This is what the weather in Prague (Czechia) was like in May in 2017–2026.

Key facts at a glance

Prevailing weather: Light rain

Avg. daytime high

18.9 °C

14.9 °C – 22.1 °C

Avg. night-time low

7.7 °C

5.4 °C – 10.5 °C

Avg. rain days in period

13.4

43 % of days · ≥ 1.0 mm

Avg. precipitation in period

65.1 mm

27.2 mm – 123 mm

Avg. cloud cover

66 %

This data source has no sunshine hours – average cloud cover shown instead.

Avg. sea temperature

–

No sea nearby – no sea temperature.

Extremes: Highest temperature 30.3 °C (30 May 2017) · Lowest temperature -1.1 °C (10 May 2017) · Avg. daily peak wind 20 km/h

Weather mix of all days

  • 42Sunny
  • 75Partly cloudy
  • 59Cloudy
  • 97Light rain
  • 37Rain

Summary

  • On average 18.9 °C during the day and 7.7 °C at night.
  • On average 13.4 rain days (Rain day = at least 1.0 mm of precipitation) with 65.1 mm of precipitation in total.
  • Prevailing: Light rain.
  • Warmest year: 2018 (avg. 22.1 °C), coolest: 2021 (avg. 14.9 °C).
  • Wettest year: 2021 (123 mm), driest: 2023 (27.2 mm).
  • Extremes: 30.3 °C on 30 May 2017 and -1.1 °C on 10 May 2017.

Overall values from all 10 years. How is this calculated?

Charts

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

  • 2026

    Partly cloudy
    Avg. max21.4°Avg. min8.7°
    Rain days
    9 Rain days
    Precipitation
    47.3 mm
    Avg. cloud cover
    58 % cloudy
    Sea temperature
    –

    Max 29.3 °C · Min 2.1 °C

  • 2025

    Light rain
    Avg. max17.8°Avg. min6.5°
    Rain days
    13 Rain days
    Precipitation
    42.2 mm
    Avg. cloud cover
    69 % cloudy
    Sea temperature
    –

    Max 27.4 °C · Min 1.7 °C

  • 2024

    Light rain
    Avg. max19.3°Avg. min9.6°
    Rain days
    18 Rain days
    Precipitation
    103 mm
    Avg. cloud cover
    67 % cloudy
    Sea temperature
    –

    Max 22.2 °C · Min 5.1 °C

  • 2023

    Cloudy
    Avg. max18.5°Avg. min6.6°
    Rain days
    5 Rain days
    Precipitation
    27.2 mm
    Avg. cloud cover
    63 % cloudy
    Sea temperature
    –

    Max 24.3 °C · Min 1.5 °C

  • 2022

    Partly cloudy
    Avg. max21.1°Avg. min9.6°
    Rain days
    10 Rain days
    Precipitation
    48.6 mm
    Avg. cloud cover
    66 % cloudy
    Sea temperature
    –

    Max 28.1 °C · Min 5.4 °C

  • 2021

    Light rain
    Avg. max14.9°Avg. min5.4°
    Rain days
    22 Rain days
    Precipitation
    123 mm
    Avg. cloud cover
    75 % cloudy
    Sea temperature
    –

    Max 26.3 °C · Min -1.0 °C

  • 2020

    Partly cloudy
    Avg. max17.8°Avg. min6.0°
    Rain days
    15 Rain days
    Precipitation
    83.2 mm
    Avg. cloud cover
    70 % cloudy
    Sea temperature
    –

    Max 24.1 °C · Min -0.8 °C

  • 2019

    Light rain
    Avg. max16.4°Avg. min6.0°
    Rain days
    14 Rain days
    Precipitation
    90.5 mm
    Avg. cloud cover
    78 % cloudy
    Sea temperature
    –

    Max 23.7 °C · Min -0.6 °C

  • 2018

    Light rain
    Avg. max22.1°Avg. min10.5°
    Rain days
    14 Rain days
    Precipitation
    46.6 mm
    Avg. cloud cover
    54 % cloudy
    Sea temperature
    –

    Max 28.2 °C · Min 4.5 °C

  • 2017

    Light rain
    Avg. max19.6°Avg. min8.2°
    Rain days
    14 Rain days
    Precipitation
    39.5 mm
    Avg. cloud cover
    64 % cloudy
    Sea temperature
    –

    Max 30.3 °C · Min -1.1 °C

Frequently asked questions

How warm is it in Prague in May?
Daytime highs averaged 18.9 °C, night-time lows 7.7 °C. The highest value of the past 10 years was 30.3 °C (30 May 2017), the lowest -1.1 °C (10 May 2017).
How often does it rain in Prague in May?
On average there were 13.4 rain days (at least 1 mm) with 65.1 mm of precipitation in total.

Check your exact travel dates

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Destination
🇨🇿 Prague
Czechia
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Data sources

Weather data
Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature
MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis)
Place search
Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)