In August, Haikou typically sees daytime highs of 31.9°C and overnight lows around 25.2°C. Compared to the annual average high of 27.7°C, August runs +4.2°C.
August in Haikou averages a daytime high of 31.9°C and an overnight low of 25.2°C.
August runs +4.2°C compared to Haikou's annual average high of 27.7°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 31.9°C and cooler evenings around 25.2°C.