Ustroń Weather in September
Ustroń in September sees pleasant daytime temperatures of 19°C (66°F) and nighttime lows of 9°C (48°F). Rainfall is fairly high this month at around 104 mm (4.1 in), so pack a rain jacket to stay dry.
Rainfall in Ustroń in September
This month experiences about 13 days of rain according to historical data, averaging 104 mm (4.1 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Ustroń in September
Expect highs of 19°C (66°F) in Ustroń in September, with nights dropping to around 9°C (48°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Ustroń in September
The month experiences a moderate amount of sunlight, with 150 hours of sunshine. This provides a nice balance between sunshine and clouds.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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Poland, check out our Ustroń's climate page.
Ustroń Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
19°C (66°F)
Chance of Rain
42%
Precipitation
104 mm (4.1 in)
Rainy days
13 days
Humidity
78% *
Sunshine
150 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ustroń typically drop from around 18°C (64°F) at the start of September to approximately 14°C (57°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 10°C (50°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 Ustroń in September
Browse day-by-day weather records for Ustroń spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ustroń historical weather extremes in September
The extremes listed below come from historical weather data collected in Ustroń from 1976 through 2025.
- The hottest September day on record in Ustroń reached 29°C (84°F) (September 3, 2024).
- The coldest September day was on September 30, 2010, with a maximum of 4°C (39°F).
- Nighttime temperatures dropped to -1°C (30°F) on September 28, 1977, marking the coldest September night on record.
Best Places in Poland in September
Find out more about the weather in Poland and which places have the best travel conditions in this month. See all of Poland in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Ustroń 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Ustroń 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 Poland, check out our Ustroń's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ustroń climate overview or explore weather in Poland.
