Słupsk Weather in September

Thinking of visiting Słupsk in September? Expect pleasant temperatures reaching 18°C (64°F) during the day, dropping to 11°C (52°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Słupsk in September

You can expect rain on roughly 15 days based on historical data, averaging 85 mm (3.3 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Słupsk in September

September in Słupsk brings pleasant temperatures, with highs of 18°C (64°F) and nights around 11°C (52°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Słupsk in September

The area enjoys a moderate level of sunlight, with around 137 hours. It's a good balance between sunny and cloudy days.

If you prefer enjoying temperate temperatures and rain-free days, 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.

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

Słupsk Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 50%  

Precipitation 85 mm (3.3 in)  

Rainy days 15 days  

Sunshine 137 hours *  

Percentage Sunshine *  

* Data from: Koszalin, Poland (63 KM, 39 Miles).

What to Wear in Słupsk in September

For Słupsk in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Słupsk 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 Słupsk's climate page.

More climate data for Słupsk

Temperature Rainfall Sunshine

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