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Czech Republic weather in September

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

What is the weather like in Czech Republic in September?

September in Czech Republic generally has temperatures that range from moderate to pleasant, with precipitation levels ranging from moderate to high.

During the day the temperature is moderate in Horní Malá Úpa at 17°C and pleasant in Valtice at 22°C. As night falls, temperatures generally drop to 12°C in Valtice and 8°C in Horní Malá Úpa.

In September, precipitation varies across different areas. From moderate rainfall in Louny with an average of 53 mm to high rainfall in Mosty u Jablunkova with 104 mm. Most cities enjoy a balanced amount of sunshine, with around 161 hours of sunlight anticipated in Prague. This ensures the days are neither too dim nor excessively sunny.

For a closer look at September's conditions in Czech Republic, see the map below. For a more detailed look at Czech Republic's yearly weather, check out our Czech Republic climate page.

Where to go in Czech Republic in September

Find the average weather conditions in September for the most popular destinations in Czech Republic on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Czech Republic

What is the weather like in September for the 5 most popular destinations in Czech Republic?

Average weather in Prague

In September Prague generally has pleasant temperatures with maximum daytime temperatures around 20°C, minimum nighttime temperatures around 10°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Prague
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
26°C 
14°C 
212 hours 
78 mm 
13 days 
20°C 
10°C 
161 hours 
63 mm 
12 days 
October   >> October
>>  
14°C 
6°C 
121 hours 
49 mm 
11 days 
Climate in Prague

Average weather in Karlovy Vary

In September Karlovy Vary generally has moderate temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 8°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Karlovy Vary
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
23°C 
12°C 
185 hours 
84 mm 
15 days 
18°C 
8°C 
139 hours 
67 mm 
14 days 
October   >> October
>>  
12°C 
4°C 
105 hours 
59 mm 
13 days 
Climate in Karlovy Vary

Average weather in Brno

In September Brno generally has pleasant temperatures with maximum daytime temperatures around 21°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Brno
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
27°C 
15°C 
244 hours 
72 mm 
12 days 
21°C 
11°C 
177 hours 
71 mm 
10 days 
October   >> October
>>  
14°C 
6°C 
113 hours 
49 mm 
10 days 
Climate in Brno

Average weather in Český Krumlov

In September Český Krumlov generally has pleasant temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Český Krumlov
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
24°C 
13°C 
210 hours 
109 mm 
15 days 
18°C 
9°C 
156 hours 
78 mm 
12 days 
October   >> October
>>  
13°C 
5°C 
136 hours 
60 mm 
11 days 
Climate in Český Krumlov

Average weather in Harrachov

In September Harrachov generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 8°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Harrachov
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
22°C 
11°C 
116 mm 
15 days 
17°C 
8°C 
96 mm 
13 days 
October   >> October
>>  
11°C 
4°C 
79 mm 
13 days 
Climate in Harrachov

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

Is September the best time to visit Czech Republic?

We believe that September is one of the best times to visit Czech Republic with overall perfect weather in Prague. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in May, June, July, August and September offering mostly 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. Interested in the weather conditions in a specific month? Select the month below.

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  • 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 climate conditions. Find out where to go with our weather planner.