Jičín Weather in September
In Jičín, September brings pleasant daytime temperatures around 19°C (66°F), with nights cooling to 10°C (50°F). Expect quite a bit of rainfall this month.
Rainfall in Jičín in September
This month experiences about 12 days of rain according to historical data, averaging 67 mm (2.6 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Jičín in September
Daytime temperatures in Jičín reach 19°C (66°F) in September, dropping to 10°C (50°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. At 10°C (50°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.If your ideal day consists of dry skies and pleasant temperatures, June, July and August typically offer the best circumstances for Jičín.
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 Jičín's climate page.
Jičín Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
19°C (66°F)
Chance of Rain
40%
Precipitation
67 mm (2.6 in)
Rainy days
12 days
Humidity
75% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Jičín typically drop from around 17°C (63°F) at the start of September to approximately 13°C (55°F) by the end. Nights are cold, with lows typically ranging from 6°C (43°F) to 9°C (48°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 Jičín in September
Browse day-by-day weather records for Jičín spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jičín historical weather extremes in September
The extremes listed below come from historical weather data collected in Jičín from 1976 through 2025.
- The hottest September day on record in Jičín reached 29°C (84°F) (September 4, 2024).
- Nighttime temperatures dropped to -2°C (28°F) on September 26, 2018, marking the coldest September night on record.
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
pleasant
tolerable
unpleasant
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What to Wear in Jičín 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.What To Do in Jičín 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 Jičín's climate page.
See the full Jičín climate overview or explore weather in Czech Republic.
