San Francisco Bay - Seaplane Harbor Weather Forecast

    • 56
    • 65

    Increasing Clouds

    • 55
    • 61

    Mostly Cloudy

    • 57
    • 64

    Chance Rain

    • 57
    • 64

    Chance Rain

    • 57
    • 63

    Partly Sunny

    • 55
    • 64

    Mostly Sunny

    • 56
    • 65

    Mostly Sunny

Today 18 Oct San Francisco Bay Shoreline

Sunny. Highs in the upper 60s to mid 70s. West Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 18 Oct San Francisco Bay Shoreline

Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s. West Winds 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Francisco Bay - Seaplane Harbor Temperature Statistics

October Temperature

San Francisco, San Francisco International Airport (1.2 miles)

  • Lowest 12 October, 2026

    50.6 °F

  • Average October

    66 °F

  • Highest 3 October, 2026

    90.6 °F

Climate (2021–2026)

San Francisco, San Francisco International Airport (1.2 miles)

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  • Average Low 2021–2026

    52.6 °F

  • Average 2021–2026

    58.8 °F

  • Average High 2021–2026

    66.9 °F
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