Southgate Weather Forecast

    • 52
    • 75

    Becoming Sunny

    • 51
    • 71

    Mostly Sunny

    • 57
    • 76

    Mostly Sunny

    • 54
    • 82

    Sunny

    • 55
    • 85

    Mostly Sunny

    • 55
    • 85

    Mostly Sunny

Today 15 May San Francisco Bay Shoreline

Sunny, breezy. Highs in the 70s. West Winds 5 to 10 Mph increasing to 20 to 30 Mph in the afternoon.

Tonight 15 May San Francisco Bay Shoreline

Mostly clear. Lows in the lower 50s. South Winds 5 to 10 Mph.

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Southgate Temperature Statistics

May Temperature

Hayward, Hayward Air Terminal (1.2 miles)

  • Lowest 11 May, 2026

    51.1 °F

  • Average May

    60.1 °F

  • Highest 11 May, 2026

    77 °F

Climate (2021–Present)

Hayward, Hayward Air Terminal (1.2 miles)

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  • Average Low 2021–2026

    52.3 °F

  • Average 2021–2026

    59.6 °F

  • Average High 2021–2026

    69.1 °F
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