San Francisco Bay - Sierra Point Marina Weather Forecast

    • 54
    • 88

    Sunny

    • 53
    • 84

    Mostly Sunny

    • 52
    • 77

    Mostly Sunny

    • 52
    • 74

    Partly Sunny

    • 53
    • 67

    Partly Sunny

    • 53
    • 66

    Partly Sunny

    • 53
    • 65

    Partly Sunny

Today 18 May San Francisco Bay Shoreline

Sunny. Highs in the 80s. Northwest Winds 10 to 20 Mph.

Tonight 18 May San Francisco Bay Shoreline

Clear. Lows in the mid 50s. Northwest Winds 10 to 20 Mph. Becoming 5 to 10 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

    59.1 °F

  • Highest 11 May, 2026

    72.6 °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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