August · Poland
Best time to visit Białystok in August Weather, crowds & prices
Weather in Białystok in August
Average temperature 21°C, 41 mm of rain, about 19 days with 6+ hours of sunshine and 69% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
9.4/10
Ranked #1 of 12 months
- Avg temp
- 21°C
- Rainfall
- 41 mm
- Humidity
- 69%
- Days with 6h+ sun
- 19
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Białystok scores 9.4/10 for sightseeing and cultural travel - the single best month of the year. Expect around 21°C, 41 mm of rain, and roughly 19 days with 6+ hours of sunshine this month.
Białystok's baroque Branicki palace and garden give eastern Poland a Versailles of its own.
August in Białystok — the year's strongest window
August averages 21°C (70°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Expect 41 mm of rain — occasional showers rather than washed-out days — alongside about 19 days with 6+ hours of sunshine and 14.5 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Białystok at 9.4/10 — the reference point every other month on this page is measured against.
Pack light clothing, a hat and real sun protection.
Plan for peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Białystok in August?
- In August, Białystok averages 21°C, 41 mm of rain, and about 19 days with 6+ hours of sunshine. Its climate-comfort score is 9.4/10.
- Is August a good time to visit Białystok?
- August earns a 9.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Białystok in August?
- Expect about 41 mm of rain in August. Average humidity is 69% and there are about 19 days with 6+ hours of sunshine.
Curated in Białystok
Tickets & experiences
Things to do in Białystok
Białystok, Poland. Live activities and tours from GetYourGuide, matched to this destination.