In May, Bialystok typically sees daytime highs of 18.6°C and overnight lows around 5.5°C. Compared to the annual average high of 11.8°C, May runs +6.9°C.
May in Bialystok averages a daytime high of 18.6°C and an overnight low of 5.5°C.
May runs +6.9°C compared to Bialystok's annual average high of 11.8°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 18.6°C and cooler evenings around 5.5°C.