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Świnoujście Weather in September
Świnoujście in September averages 19°C (66°F) during the day and 13°C (55°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Świnoujście in September
You can expect rain on around 14 days based on historical patterns, with 76 mm (3 in) average 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 Świnoujście in September
September in Świnoujście brings pleasant temperatures, with highs of 19°C (66°F) and nights around 13°C (55°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 13°C (55°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.If your ideal day consists of dry skies and pleasant temperatures, June, July and August typically offer the best circumstances for Świnoujście.
Świnoujście Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
19°C (66°F)
Chance of Rain
46%
Precipitation
76 mm (3 in)
Rainy days
14 days
Humidity
81%
Świnoujście Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Świnoujście - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Świnoujście typically drop from around 20°C (68°F) at the start of September to approximately 16°C (61°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°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 records for Świnoujście in September
Browse day-by-day weather records for Świnoujście spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Świnoujście historical weather extremes in September
The extremes listed below come from historical weather data collected in Świnoujście from 1976 through 2026.
- On September 4, 2024, temperatures climbed to 33°C (91°F), marking the warmest September day on record.
- On September 30, 1995, Świnoujście saw its coldest September day with temperatures maxing out at 9°C (48°F).
- The coldest night in September in Świnoujście was on September 25, 2002, with a minimum of 0°C (32°F).
- Peak precipitation in September occurred on September 6, 1980, when 43 mm (1.7 in) of precipitation was measured.
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
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 Świnoujście 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 Świnoujście in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping8/10 -
Outdoor sports9/10
Świnoujście 3-Day Forecast
More climate data for Świnoujście
See the full Świnoujście climate overview or explore weather in Poland.
Popular in September
Where to go in September - average daytime high across popular destinations.
Poznań
20°C (68°F) Kraków
20°C (68°F) Warsaw20°C (68°F) Gdańsk19°C (66°F) Gdynia
18°C (64°F) Sopot19°C (66°F) Kołobrzeg19°C (66°F) Zakopane17°C (63°F) Bucket list
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