San Francisco Bay - Sierra Point Marina Weather Forecast

    • 51
    • 73

    Mostly Sunny

    • 52
    • 71

    Mostly Sunny

    • 53
    • 72

    Partly Sunny

    • 53
    • 68

    Partly Sunny

    • 52
    • 66

    Partly Sunny

    • 53
    • 65

    Partly Sunny

    • 53
    • 61

    Mostly Sunny

Today 20 May San Francisco Bay Shoreline

Sunny. Highs in the 70s to mid 80s. Northwest Winds 5 to 15 Mph.

Tonight 20 May San Francisco Bay Shoreline

Mostly clear. Lows in the mid 50s. Northwest Winds 10 to 15 Mph. Becoming west up to 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Francisco Bay - Sierra Point Marina Temperature Statistics

May Temperature

San Francisco, San Francisco International Airport (3.7 miles)

  • Lowest 11 May, 2026

    50.6 °F

  • Average May

    59.9 °F

  • Highest 18 May, 2026

    79 °F

Climate (2021–Present)

San Francisco, San Francisco International Airport (3.7 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    66.7 °F
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