San Mateo Weather Forecast

    • 55
    • 82

    Decreasing Clouds

    • 51
    • 81

    Mostly Sunny

    • 51
    • 70

    Partly Sunny

    • 55
    • 72

    Mostly Cloudy

    • 53
    • 70

    Chance Rain

    • 50
    • 69

    Slight Chance Rain

Today 4 Apr San Francisco Bay Shoreline

Partly cloudy. Highs in the upper 70s to mid 80s. Northeast Winds up to 5 Mph. Becoming north around 5 Mph in the afternoon.

Tonight 4 Apr San Francisco Bay Shoreline

Partly cloudy. Lows in the mid 50s. Northwest Winds around 5 Mph in the evening. Becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Mateo Temperature Statistics

April Temperature

San Francisco, San Francisco International Airport (4.3 miles)

  • Lowest 1 April, 2026

    57 °F

  • Average April

    58.8 °F

  • Highest 1 April, 2026

    61 °F

Climate (2021–Present)

San Francisco, San Francisco International Airport (4.3 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    66.7 °F
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