Prague Weather in September
September in Prague brings pleasant temperatures, with daytime highs of 20°C (68°F) and nights around 10°C (50°F). Quite a bit of rainfall is expected, around 63 mm (2.5 in), so pack an umbrella.
Rainfall in Prague in September
The climate data from previous years indicates about 12 days of rain, averaging 63 mm (2.5 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Prague in September
Prague in September is worth a visit. The temperature is excellent, with 20°C (68°F) during the day and 10°C (50°F) at night. The difference between afternoon and evening temperatures is usually noticeable. At 10°C (50°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Prague in September
The month brings about 161 hours of sunlight, offering a comfortable mix of sun and overcast.
Wind Speed in Prague in September
Wind speeds average 4 m/s (8 knots) during September. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Prague.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Czech Republic, check out our Prague's climate page.
Prague Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
20°C (68°F)
Chance of Rain
38%
Precipitation
63 mm (2.5 in)
Rainy days
12 days
Humidity
77%
Windspeed
4 m/s (8 knots)
Sunshine
161 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Prague typically drop from around 21°C (70°F) at the start of September to approximately 17°C (63°F) by the end. Nights are cool, with lows typically ranging from 8°C (46°F) to 12°C (54°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Prague in September
Browse day-by-day weather records for Prague spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Prague historical weather extremes in September
According to our 49 years of weather records for Prague, the following extremes were recorded between 1976 and 2025.
- On September 4, 2024, temperatures climbed to 34°C (93°F), marking the warmest September day on record.
- On September 19, 1977, Prague saw its coldest September day with temperatures maxing out at 7°C (45°F).
- The lowest overnight temperature recorded in September was 0°C (32°F) (September 26, 1977).
Best Places in Czech Republic in September
Find out more about the weather in Czech Republic and which places have the best travel conditions in this month. See all of Czech Republic in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Prague in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Prague in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Czech Republic, check out our Prague's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Prague climate overview or explore weather in Czech Republic.
