Prague

Czech Republic Weather in September

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

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Prague Karlovy Vary Brno Český Krumlov

Planning a trip to Czech Republic this September? Here's what you need to know about the weather:

What to Expect in Czech Republic in September

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

Temperatures

During the day the temperature is mild in Horní Malá Úpa at 17°C (63°F) and pleasant in Valtice at 22°C (72°F). As night falls, temperatures generally drop to 12°C (54°F) in Valtice and 8°C (46°F) in Horní Malá Úpa.

For specific regional insights in Czech Republic, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Louny with an average of 53 mm (2.1 in) to high rainfall in Mosty u Jablunkova with 104 mm (4.1 in).

Average sunshine

Sunshine levels are moderate in most locations. Prague typically sees 161 hours of sunlight, creating comfortable conditions that aren't too bright or too dim. Looking for something sunnier? Our weather planner helps you discover destinations with more reliable sunshine.

Explore Czech Republic by month

Pick a month to see the average temperature, rainfall and sunshine in Czech Republic — and find the best time to visit. (based on Prague)

January4°C (39°F) February5°C (41°F) March10°C (50°F) April15°C (59°F) May20°C (68°F) June23°C (73°F) This monthJuly26°C (79°F) August26°C (79°F) September20°C (68°F) October14°C (57°F) November8°C (46°F) December4°C (39°F)
Best Time to Visit Czech Republic →

Best Places to Visit in Czech Republic in September

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

Conditions Temperatures Precipitation
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 September for some of the most popular destinations in Czech Republic?

Temperature range in Czech Republic (September)

Precipitation variation in Czech Republic (September)

Prague

In September Prague generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
20°C (68°F)
14°C (57°F)
Min temperature
14°C (57°F)
10°C (50°F)
6°C (43°F)
Monthly sun hours
212 hours
161 hours
121 hours
Monthly rainfall
78 mm (3.1 in)
63 mm (2.5 in)
49 mm (1.9 in)
Monthly rainy days
13 days
12 days
11 days
Weather conditions
perfect
perfect
tolerable
Climate in Prague →

Karlovy Vary

In September Karlovy Vary generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 8°C (46°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
23°C (73°F)
18°C (64°F)
12°C (54°F)
Min temperature
12°C (54°F)
8°C (46°F)
4°C (39°F)
Monthly sun hours
185 hours
139 hours
105 hours
Monthly rainfall
84 mm (3.3 in)
67 mm (2.6 in)
59 mm (2.3 in)
Monthly rainy days
15 days
14 days
13 days
Weather conditions
perfect
pleasant
unpleasant
Climate in Karlovy Vary →

Brno

In September Brno generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
27°C (81°F)
21°C (70°F)
14°C (57°F)
Min temperature
15°C (59°F)
11°C (52°F)
6°C (43°F)
Monthly sun hours
244 hours
177 hours
113 hours
Monthly rainfall
72 mm (2.8 in)
71 mm (2.8 in)
49 mm (1.9 in)
Monthly rainy days
12 days
10 days
10 days
Weather conditions
perfect
perfect
tolerable
Climate in Brno →

Český Krumlov

In September Český Krumlov generally has pleasant temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
24°C (75°F)
18°C (64°F)
13°C (55°F)
Min temperature
13°C (55°F)
9°C (48°F)
5°C (41°F)
Monthly sun hours
210 hours
156 hours
136 hours
Monthly rainfall
109 mm (4.3 in)
78 mm (3.1 in)
60 mm (2.4 in)
Monthly rainy days
15 days
12 days
11 days
Weather conditions
pleasant
pleasant
unpleasant
Climate in Český Krumlov →

Harrachov

In September Harrachov generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 8°C (46°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

« August
September
October »
August
September
October
Max temperature
22°C (72°F)
17°C (63°F)
11°C (52°F)
Min temperature
11°C (52°F)
8°C (46°F)
4°C (39°F)
Monthly rainfall
116 mm (4.6 in)
96 mm (3.8 in)
79 mm (3.1 in)
Monthly rainy days
15 days
13 days
13 days
Weather conditions
pleasant
tolerable
unpleasant
Climate in Harrachov →

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

Popular cities in September

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

City Weather Day temp Night temp Rainfall
Prague 20°C (68°F) 10°C (50°F) 63 mm (2.5 in)
Karlovy Vary 18°C (64°F) 8°C (46°F) 67 mm (2.6 in)
Brno 21°C (70°F) 11°C (52°F) 71 mm (2.8 in)
Český Krumlov 18°C (64°F) 9°C (48°F) 78 mm (3.1 in)
Špindlerův Mlýn 17°C (63°F) 8°C (46°F) 94 mm (3.7 in)
Ostrava 20°C (68°F) 10°C (50°F) 89 mm (3.5 in)

Czech Republic weather in September: frequently asked questions

What is the weather like in Czech Republic in September?

Expect perfect weather across Czech Republic in September. The popular destination of Prague averages 20°C (68°F) by day and 10°C (50°F) at night during this month.

What is the average temperature in Czech Republic in September?

In Prague, the average daytime high in September is 20°C (68°F), while nighttime temperatures drop to around 10°C (50°F).

Does Czech Republic get a lot of rain in September?

Rain is generally moderate to light in Czech Republic during September, with Prague averaging close to 63 mm (2.5 in).

Is September a Good 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.

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.

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