Gulf of the Farallones Marine Sanctuary Weather Forecast

    • 53
    • 59

    Rain Likely

    • 50
    • 58

    Rain

    • 50
    • 56

    Slight Chance Rain

    • 52
    • 61

    Mostly Sunny

    • 53
    • 65

    Partly Sunny

    • 53
    • 63

    Partly Sunny

Today 31 Mar San Francisco Peninsula Coast

Rain likely in the Morning, then a chance of rain in the afternoon. Highs in the mid 60s. South Winds 5 to 10 Mph.

Tonight 31 Mar San Francisco Peninsula Coast

Mostly cloudy. A slight chance of rain in the Evening, then a chance of rain after midnight. Lows around 50. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gulf of the Farallones Marine Sanctuary Temperature Statistics

March Temperature

Half Moon Bay Airport (11.8 miles)

  • Lowest 11 March, 2026

    41 °F

  • Average March

    56.5 °F

  • Highest 16 March, 2026

    78.8 °F

Climate (2021–Present)

Half Moon Bay Airport (11.8 miles)

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    60.8 °F
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