In May, Thessaloniki typically sees daytime highs of 24.8°C and overnight lows around 13.2°C. Compared to the annual average high of 20.5°C, May runs +4.3°C.
May in Thessaloniki averages a daytime high of 24.8°C and an overnight low of 13.2°C.
May runs +4.3°C compared to Thessaloniki's annual average high of 20.5°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 24.8°C and cooler evenings around 13.2°C.