In May, Vaasa typically sees daytime highs of 11.6°C and overnight lows around 2.6°C. Compared to the annual average high of 7.0°C, May runs +4.6°C.
May in Vaasa averages a daytime high of 11.6°C and an overnight low of 2.6°C.
May runs +4.6°C compared to Vaasa's annual average high of 7.0°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 11.6°C and cooler evenings around 2.6°C.