In May, Tehran typically sees daytime highs of 27.9°C and overnight lows around 15.1°C. Compared to the annual average high of 22.4°C, May runs +5.5°C.
May in Tehran averages a daytime high of 27.9°C and an overnight low of 15.1°C.
May runs +5.5°C compared to Tehran's annual average high of 22.4°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 27.9°C and cooler evenings around 15.1°C.