Bialystok Weather in September

September in Bialystok brings pleasant temperatures, with daytime highs of 19°C (66°F) and nights around 9°C (48°F). Quite a bit of rainfall is expected, around 65 mm (2.6 in), so pack an umbrella.

Rainfall in Bialystok in September

Historically, the month has about 13 days of rain, averaging 65 mm (2.6 in) in total. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Bialystok in September

September in Bialystok brings typical temperatures with highs around 19°C (66°F) and lows of 9°C (48°F). Conditions are often most pleasant around the middle of the day. 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 Bialystok in September

The month brings about 162 hours of sunlight, offering a comfortable mix of sun and overcast.

Wind Speed in Bialystok in September

September sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.

If you prefer enjoying temperate temperatures and rain-free days, May, June, 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 Bialystok's climate page.

Bialystok Temperature in September

Min Temperature 9°C (48°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 43%  

Precipitation 65 mm (2.6 in)  

Rainy days 13 days  

Humidity 78%  

Windspeed 2 m/s (4 knots)  

Sunshine 162 hours  

Percentage Sunshine 42%  

What to Wear in Bialystok 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. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Bialystok in September

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

Swimming

6/10

Cycling

10/10

Walking

10/10

Barbeque

7/10

Camping

4/10

Outdoor sports

10/10

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 Bialystok's climate page.

More climate data for Bialystok

Temperature Rainfall Sunshine Humidity Wind Speed

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