In July, Haikou typically sees daytime highs of 32.9°C and overnight lows around 25.5°C. Compared to the annual average high of 27.7°C, July runs +5.2°C.
July in Haikou averages a daytime high of 32.9°C and an overnight low of 25.5°C.
July runs +5.2°C compared to Haikou's annual average high of 27.7°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 32.9°C and cooler evenings around 25.5°C.