Koszalin Weather in September

During September, Koszalin experiences pleasant daytime temperatures of 19°C (66°F) and cooler nights around 11°C (52°F). Expect quite a bit of rainfall. Around 79 mm (3.1 in) is typical.

Rainfall in Koszalin in September

Based on our climate data of the past 30 years, about 15 days of rain are anticipated, with 79 mm (3.1 in) on average. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Koszalin in September

Koszalin in September gets highs of 19°C (66°F) during the day and drops to 11°C (52°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 11°C (52°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.

Sunshine in Koszalin in September

The city usually sees around 137 hours of sunlight, indicating a moderately sunny period.

For Koszalin itself, June, July and August generally stand out with 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.

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For a detailed overview over the year and the best time to visit Poland, check out our Koszalin's climate page.

Koszalin Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 49%  

Precipitation 79 mm (3.1 in)  

Rainy days 15 days  

Sunshine 137 hours  

Percentage Sunshine  

What to Wear in Koszalin 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Koszalin in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Poland, check out our Koszalin's climate page.

More climate data for Koszalin

Temperature Rainfall Sunshine

See the full Koszalin climate overview or explore weather in Poland.