Prague, Czech Republic skyline

Prague Weather in August

The usual August conditions in Prague, Czech Republic, drawn from 2006–2025 records.

Prague in August: highs near 24.8°C (76.6°F), lows near 15°C (59°F), roughly 11 rainy days adding up to 82 mm, and 10.8 hours of sunshine on an average day.

Avg high

24.8°C (76.6°F)

Avg low

15°C (59°F)

Rainfall

82 mm (3.2 in)

Rainy days

11 days

Sunshine

10.8 h / day

Humidity

67%

August vs the rest of the year

Only 1 month is warmer than August in Prague; for rain it is the wettest month.

MonthAvg highvs AugustRainRainy days
January3.2°C (37.8°F)−21.6°C (−38.9°F)42 mm11
February5.2°C (41.4°F)−19.6°C (−35.3°F)34 mm8
March9.7°C (49.5°F)−15.1°C (−27.2°F)38 mm10
April15.1°C (59.2°F)−9.7°C (−17.5°F)40 mm9
May19.1°C (66.4°F)−5.7°C (−10.3°F)71 mm13
June23.5°C (74.3°F)−1.3°C (−2.3°F)77 mm12
July25.5°C (77.9°F)+0.7°C (+1.3°F)73 mm12
August24.8°C (76.6°F)—82 mm11
September20.2°C (68.4°F)−4.6°C (−8.3°F)59 mm9
October14.5°C (58.1°F)−10.3°C (−18.5°F)47 mm10
November8.3°C (46.9°F)−16.5°C (−29.7°F)40 mm9
December4.5°C (40.1°F)−20.3°C (−36.5°F)42 mm10

What August feels like in Prague

For Prague, August is late summer on the calendar. Afternoons are warm and pleasant, good for long days out. After dark the temperature drops clearly: nights stay mild. The air carries some moisture, so hot spells feel a little sticky.

Rain in Prague in August

It is a changeable month: rain comes about one day in 3, with dry spells in between. Wet days average about 7.4 mm (0.3 in), enough to soak you without an umbrella. That is heavier than Prague's usual 5.2 mm per rainy day across the year. August is Prague's wettest month of the year.

Daylight and sunshine in August

On 15 August the sun rises at about 5:51 am and sets around 8:24 pm local time, giving 14 h 33 min of daylight. Evenings are drawing in — 1 h 26 min less daylight than mid-July. The sun is out for roughly 74% of those daylight hours, so there are plenty of bright spells.

How August compares to the rest of the year

In Prague's temperature order, August sits as the 2nd warmest month. Against July, the average high is 0.7°C (1.3°F) lower, with 8 mm more rain. Temperatures keep falling into September. September averages a high of 20.2°C (68.4°F).

Who August suits

  • Sightseeing: a good fit — comfortable enough to explore on foot all day.
  • Parks & outdoor: a good fit — pleasant for gardens, parks and riversides.

Tips for visiting Prague in August

Versatile Layers

Mornings and evenings are cooler than midday, so dress in layers.

Rain Protection

A packable rain jacket saves the day on showery afternoons.

Sunglasses

Frequent sunshine — sunglasses and a light hat.

Quick questions

How warm is Prague in August?

Expect around 24.8°C (76.6°F) in the afternoon and 15°C (59°F) at night, which most visitors would call warm.

Does it rain a lot in Prague in August?

It does: about 11 rainy days bring roughly 82 mm, so plan some indoor options.

What should I wear in Prague in August?

Based on the averages: versatile layers, rain protection and sunglasses. Add a layer for after dark.

Is August or September better for visiting Prague?

On our 12-month climate ranking, September comes out ahead (#1 of 12 vs #4). September is cooler and has fewer rainy days.

Is August a good time to visit Prague?

Good

Good — comfortable temperatures, frequent rain (about 11 rainy days), plenty of sunshine (10.8 h a day). Within Prague's own year, August ranks #4 of 12.

August in other Czech Republic cities

Warmer or drier places in August

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Prague weather by month.