San Francisco Bay - Greco Island Weather Forecast

    • 52
    • 65

    Becoming Sunny

    • 53
    • 69

    Sunny

    • 49
    • 64

    Mostly Sunny

    • 53
    • 66

    Partly Sunny

    • 53
    • 69

    Partly Sunny

    • 52
    • 66

    Partly Sunny

Today 23 Mar San Francisco Bay Shoreline

Partly cloudy in the morning then becoming sunny. Highs in the 70s. South Winds around 5 Mph. Becoming west in the afternoon.

Tonight 23 Mar San Francisco Bay Shoreline

Clear. Lows in the lower 50s. West Winds 5 to 10 Mph. Becoming south after midnight.

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San Francisco Bay - Greco Island Temperature Statistics

March Temperature

San Carlos Airport (3.7 miles)

  • Lowest 11 March, 2026

    46.4 °F

  • Average March

    58.8 °F

  • Highest 20 March, 2026

    87.8 °F

Climate (2021–Present)

San Carlos Airport (3.7 miles)

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  • Average Low 2021–2026

    51.5 °F

  • Average 2021–2026

    56.8 °F

  • Average High 2021–2026

    68.2 °F
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