In May, Rio de Mouro typically sees daytime highs of 19.1°C and overnight lows around 12.9°C. Compared to the annual average high of 18.4°C, May runs +0.7°C.
May in Rio de Mouro averages a daytime high of 19.1°C and an overnight low of 12.9°C.
May runs +0.7°C compared to Rio de Mouro's annual average high of 18.4°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 19.1°C and cooler evenings around 12.9°C.