In May, Tallinn typically sees daytime highs of 14.0°C and overnight lows around 4.6°C. Compared to the annual average high of 8.1°C, May runs +5.9°C.
May in Tallinn averages a daytime high of 14.0°C and an overnight low of 4.6°C.
May runs +5.9°C compared to Tallinn's annual average high of 8.1°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 14.0°C and cooler evenings around 4.6°C.