Czech Republic

Czech Republic Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in Czech Republic in August.

Thinking about venturing to Czech Republic this August and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Czech Republic in August

August in Czech Republic generally has temperatures that range from pleasant to warm, with precipitation levels ranging from moderate to high. It's the height of summer.

Temperatures

The average maximum daytime temperatures vary from pleasant in Horní Malá Úpa at 22°C (72°F) to warm in Valtice at 28°C (82°F). Nighttime temperatures generally drop to 16°C (61°F) in Valtice and 11°C (52°F) in Horní Malá Úpa. In Czech Republic, August typically stands out as the hottest month of the year. If you're planning a visit during this time, it would be wise to come prepared. Packing light and breathable summer cloths will ensure you stay comfortable throughout your stay.

For a closer look at conditions across Czech Republic, refer to the map below.

Precipitation

In August, precipitation varies across different areas. From moderate rainfall in Lovosice with an average of 68 mm (2.7 in) to high rainfall in Modrava with 139 mm (5.5 in).

Average sunshine

August brings good sunshine to many areas. Prague sees around 212 hours of sunlight, great for visitors looking for bright days.

Explore Czech Republic by month

Best Places to Visit in Czech Republic in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Czech Republic.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Czech Republic

What is the weather like in August for some of the most popular destinations in Czech Republic?

Temperature range in Czech Republic (August)

Precipitation variation in Czech Republic (August)

Prague

In August Prague generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 14°C (57°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

July
August
September
Max temperature
26°C (79°F)
26°C (79°F)
20°C (68°F)
Min temperature
14°C (57°F)
14°C (57°F)
10°C (50°F)
Monthly sun hours
226 hours
212 hours
161 hours
Monthly rainfall
86 mm (3.4 in)
78 mm (3.1 in)
63 mm (2.5 in)
Monthly rainy days
14 days
13 days
12 days
Weather conditions

Karlovy Vary

In August Karlovy Vary generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 12°C (54°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

July
August
September
Max temperature
23°C (73°F)
23°C (73°F)
18°C (64°F)
Min temperature
12°C (54°F)
12°C (54°F)
8°C (46°F)
Monthly sun hours
196 hours
185 hours
139 hours
Monthly rainfall
96 mm (3.8 in)
84 mm (3.3 in)
67 mm (2.6 in)
Monthly rainy days
15 days
15 days
14 days
Weather conditions

Brno

In August Brno generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 15°C (59°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

July
August
September
Max temperature
27°C (81°F)
27°C (81°F)
21°C (70°F)
Min temperature
15°C (59°F)
15°C (59°F)
11°C (52°F)
Monthly sun hours
245 hours
244 hours
177 hours
Monthly rainfall
88 mm (3.5 in)
72 mm (2.8 in)
71 mm (2.8 in)
Monthly rainy days
14 days
12 days
10 days
Weather conditions

Český Krumlov

In August Český Krumlov generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 13°C (55°F) and high monthly rainfall. So on average the conditions are pleasant that month.

July
August
September
Max temperature
24°C (75°F)
24°C (75°F)
18°C (64°F)
Min temperature
13°C (55°F)
13°C (55°F)
9°C (48°F)
Monthly sun hours
222 hours
210 hours
156 hours
Monthly rainfall
122 mm (4.8 in)
109 mm (4.3 in)
78 mm (3.1 in)
Monthly rainy days
16 days
15 days
12 days
Weather conditions

Harrachov

In August Harrachov generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 11°C (52°F) and high monthly rainfall. So on average the conditions are pleasant that month.

July
August
September
Max temperature
22°C (72°F)
22°C (72°F)
17°C (63°F)
Min temperature
12°C (54°F)
11°C (52°F)
8°C (46°F)
Monthly rainfall
144 mm (5.7 in)
116 mm (4.6 in)
96 mm (3.8 in)
Monthly rainy days
16 days
15 days
13 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Czech Republic.

In our records: Czech Republic August extremes

Notable August records observed across cities in Czech Republic in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • From our sources, the wettest August day in Czech Republic brought 300 mm (12 in) in Janov nad Nisou on August 14, 2001.

Popular cities in August

Day & night temperatures, rainfall and average weather in Czech Republic in August.

City Weather Day temp Night temp Rainfall
Prague 26°C (79°F) 14°C (57°F) 78 mm (3.1 in)
Karlovy Vary 23°C (73°F) 12°C (54°F) 84 mm (3.3 in)
Brno 27°C (81°F) 15°C (59°F) 72 mm (2.8 in)
Český Krumlov 24°C (75°F) 13°C (55°F) 109 mm (4.3 in)
Špindlerův Mlýn 22°C (72°F) 11°C (52°F) 116 mm (4.6 in)
Ostrava 25°C (77°F) 14°C (57°F) 88 mm (3.5 in)

Czech Republic weather in August: frequently asked questions

What is the weather like in Czech Republic in August?

August in Czech Republic brings perfect weather. In Prague, daytime temperatures are typically around 26°C (79°F) and nighttime lows hover near 14°C (57°F).

What is the average temperature in Czech Republic in August?

In Prague, the average daytime high in August is 26°C (79°F), while nighttime temperatures drop to around 14°C (57°F).

Does Czech Republic get a lot of rain in August?

Not particularly. Prague averages just 78 mm (3.1 in) of rain in August, making it a mostly dry month for Czech Republic.

Is August a Good Time to Visit Czech Republic?

We consider August to be one of the best times to travel to Czech Republic. Typically, the climate in Prague is perfect. However, the weather conditions may vary depending on your destination.

On average, the best time to visit Czech Republic is in May, June, July, August and September with generally perfect weather in Prague. In contrast, January, February, March, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Czech Republic.

Weather and climate has detailed information for every country in the world. Are you going to Czech Republic? Get detailed historical weather averages for many cities in Czech Republic.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.