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Rokytnice nad Jizerou Weather in September
September in Rokytnice nad Jizerou sees daytime temperatures around 17°C (63°F) and lows of 8°C (46°F) at night. With around 94 mm (3.7 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Rokytnice nad Jizerou in September
Climate statistics over the past 30 years suggest around 13 days of rain, with 94 mm (3.7 in) average for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Rokytnice nad Jizerou in September
Expect highs of 17°C (63°F) in Rokytnice nad Jizerou in September, with nights dropping to around 8°C (46°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 8°C (46°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.If you prefer dry days with pleasant temperatures, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Rokytnice nad Jizerou Temperature in September
Min Temperature
8°C (46°F)
Max Temperature
17°C (63°F)
Chance of Rain
44%
Precipitation
94 mm (3.7 in)
Rainy days
13 days
Humidity
75% *
* Data from: Liberec, Czech Republic (27 KM, 17 Miles).
Rokytnice nad Jizerou Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rokytnice nad Jizerou - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Rokytnice nad Jizerou 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 4°C (39°F) to 8°C (46°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 records for Rokytnice nad Jizerou in September
Browse day-by-day weather records for Rokytnice nad Jizerou spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Rokytnice nad Jizerou historical weather extremes in September
According to our 49 years of weather records for Rokytnice nad Jizerou, the following extremes were recorded between 1976 and 2025.
- The warmest day in September was on September 16, 1982, with a maximum of 28°C (82°F).
- On September 30, 1995, Rokytnice nad Jizerou saw its coldest September day with temperatures maxing out at 3°C (37°F).
- Nighttime temperatures dropped to -3°C (27°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
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).
What to Wear in Rokytnice nad Jizerou 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. Prepare for significant rainfall with proper waterproof clothing and shoes.
What To Do in Rokytnice nad Jizerou in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports9/10
Rokytnice nad Jizerou 3-Day Forecast
More climate data for Rokytnice nad Jizerou
See the full Rokytnice nad Jizerou climate overview or explore weather in Czech Republic.
Popular in September
Where to go in September - average daytime high across popular destinations.
Prague
20°C (68°F) Brno21°C (70°F) Mariánské Lázně
19°C (66°F) Český Krumlov18°C (64°F) Karlovy Vary
18°C (64°F) Harrachov17°C (63°F) Rokytnice nad Jizerou17°C (63°F) Špindlerův Mlýn17°C (63°F) Bucket list
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