San Mateo Weather Forecast

    • 59
    • 86

    Increasing Clouds

    • 59
    • 81

    Mostly Sunny

    • 59
    • 81

    Mostly Sunny

    • 60
    • 81

    Partly Sunny

    • 61
    • 79

    Partly Sunny

    • 60
    • 79

    Partly Sunny

Today 9 Aug San Francisco Bay Shoreline

Partly cloudy in the morning then becoming sunny. Highs in the 80s. West Winds up to 5 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 9 Aug San Francisco Bay Shoreline

Mostly clear. Lows in the lower 60s. West Winds 10 to 20 Mph.

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San Mateo Temperature Statistics

August Temperature

San Francisco, San Francisco International Airport (4.3 miles)

  • Lowest 3 August, 2026

    56.6 °F

  • Average August

    66.2 °F

  • Highest 2 August, 2026

    80.7 °F

Climate (2021–2026)

San Francisco, San Francisco International Airport (4.3 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    66.8 °F
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