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Harrachov Weather in September
Harrachov in September sees moderate daytime temperatures of 17°C (63°F) and nighttime lows of 8°C (46°F). Rainfall is fairly high this month at around 96 mm (3.8 in), so pack a rain jacket to stay dry.
Rainfall in Harrachov in September
Typically, you can expect about 13 days of rain this month, with 96 mm (3.8 in) on average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Harrachov in September
In September, Harrachov sees moderate temperatures, with highs of 17°C (63°F). Nights drop to around 8°C (46°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.Should you favor a climate that's both dry and comfortably warm, June, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Harrachov Temperature in September
Min Temperature
8°C (46°F)
Max Temperature
17°C (63°F)
Chance of Rain
44%
Precipitation
96 mm (3.8 in)
Rainy days
13 days
Humidity
75% *
* Data from: Liberec, Czech Republic (25 KM, 16 Miles).
Harrachov Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Harrachov - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Harrachov 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 5°C (41°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 Harrachov in September
Browse day-by-day weather records for Harrachov spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Harrachov historical weather extremes in September
Our historical data for Harrachov spans 1976 to 2026, revealing these weather extremes.
- On September 8, 2026, temperatures climbed to 29°C (84°F), marking the warmest September day on record.
- Harrachov experienced its chilliest September day on September 25, 2002, reaching only 4°C (39°F).
- The lowest overnight temperature recorded in September was -3°C (27°F) (September 26, 2018).
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 Harrachov in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags.
What To Do in Harrachov 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
Harrachov 3-Day Forecast
More climate data for Harrachov
See the full Harrachov 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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