Kiermusy Weather in September

September in Kiermusy typically sees daytime highs of 19°C (66°F) and nighttime lows of 9°C (48°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Kiermusy in September

Expect around 13 days of rain based on historical data, with 64 mm (2.5 in) average. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Kiermusy in September

September in Kiermusy sees highs of 19°C (66°F) and lows of 9°C (48°F) overnight. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. 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 Kiermusy in September

The city usually sees around 162 hours of sunlight, indicating a moderately sunny period.

Should you favor a climate that's both dry and comfortably warm, May, 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.

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

Kiermusy Temperature in September

Min Temperature 9°C (48°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 44%  

Precipitation 64 mm (2.5 in)  

Rainy days 13 days  

Humidity 78% *  

Sunshine 162 hours *  

Percentage Sunshine 42% *  

* Data from: Bialystok, Poland (32 KM, 20 Miles).

What to Wear in Kiermusy in September

For Kiermusy 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. Rain is likely on several days, so bring a good rain jacket. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Kiermusy 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 Kiermusy's climate page.

More climate data for Kiermusy

Temperature Rainfall Sunshine Humidity

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