In August, Port Arthur typically sees daytime highs of 31.7°C and overnight lows around 24.1°C. Compared to the annual average high of 24.3°C, August runs +7.4°C.
August in Port Arthur averages a daytime high of 31.7°C and an overnight low of 24.1°C.
August runs +7.4°C compared to Port Arthur's annual average high of 24.3°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 31.7°C and cooler evenings around 24.1°C.