Kemah Weather Forecast

    • 78
    • 92

    Becoming Sunny

    • 78
    • 91

    Slight Chance Thunderstorms

    • 78
    • 92

    Mostly Sunny

    • 78
    • 94

    Mostly Sunny

    • 78
    • 93

    Mostly Sunny

    • 77
    • 91

    Mostly Sunny

Today 19 Sep Coastal Galveston

Sunny. Highs in the lower 90s. East Winds 5 to 10 Mph.

Tonight 19 Sep Coastal Galveston

Mostly clear. Lows in the upper 70s. Southeast Winds 5 to 10 Mph, becoming south after midnight.

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Kemah Temperature Statistics

September Temperature

Houston / Ellington (9.3 miles)

  • Lowest 10 September, 2026

    77 °F

  • Average September

    84.3 °F

  • Highest 7 September, 2026

    95 °F

Climate (2021–2026)

Houston / Ellington (9.3 miles)

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  • Average Low 2021–2026

    64.4 °F

  • Average 2021–2026

    72 °F

  • Average High 2021–2026

    80.5 °F
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