In May, Onitsha typically sees daytime highs of 31.8°C and overnight lows around 22.9°C. Compared to the annual average high of 31.5°C, May runs +0.2°C.
May in Onitsha averages a daytime high of 31.8°C and an overnight low of 22.9°C.
May runs +0.2°C compared to Onitsha's annual average high of 31.5°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 31.8°C and cooler evenings around 22.9°C.