In May, Joensuu typically sees daytime highs of 12.1°C and overnight lows around 2.3°C. Compared to the annual average high of 5.9°C, May runs +6.2°C.
May in Joensuu averages a daytime high of 12.1°C and an overnight low of 2.3°C.
May runs +6.2°C compared to Joensuu's annual average high of 5.9°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 12.1°C and cooler evenings around 2.3°C.