San Mateo Weather Forecast

    • 55
    • 90

    Increasing Clouds

    • 49
    • 75

    Becoming Sunny

    • 50
    • 72

    Mostly Sunny

    • 52
    • 72

    Mostly Sunny

    • 52
    • 75

    Mostly Sunny

    • 50
    • 70

    Mostly Sunny

    • 51
    • 73

    Partly Sunny

Today 20 Mar San Francisco Bay Shoreline

Sunny. Highs in the 80s to mid 90s. Northwest Winds 5 to 10 Mph.

Tonight 20 Mar San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Mateo Temperature Statistics

March Temperature

San Francisco, San Francisco International Airport (4.3 miles)

  • Lowest 5 March, 2026

    46.7 °F

  • Average March

    60.7 °F

  • Highest 16 March, 2026

    83.6 °F

Climate (2021–Present)

San Francisco, San Francisco International Airport (4.3 miles)

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  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    66.6 °F
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