Weather in Białystok in September
Białystok, Poland averages a high of 17.8°C (64°F) and low of 10.1°C (50.2°F) in September, with 9 rain days and 8.1 hours of daily sunshine. Travel score: 70.9/100 (Good). The best time to visit Białystok is August.
High
18°C64°F
Low
10°C50°F
🌧️
9
rain days
☀️
8.1
hrs/day sunshine
💧
76%
humidity
71— Good
September in Białystok is mild and occasionally wet — good for most activities.
What are the average temperatures in Białystok?
How much does it rain in Białystok in September?
Białystok receives an average of 56.8mm of rainfall across 9 rainy days in September. The annual total is 648.6mm.
What should I pack for Białystok in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 18°C
Recommended
🧥
Light rain jacket
Some rainy days expected (9 days)
☔
Umbrella
Be prepared for occasional showers
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
Traveling to Poland in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31