San Francisco Bay - South San Francisco Weather Forecast

    • 59
    • 73

    Mostly Cloudy

    • 62
    • 81

    Decreasing Clouds

    • 60
    • 79

    Partly Sunny

    • 58
    • 73

    Partly Sunny

    • 58
    • 66

    Partly Sunny

    • 57
    • 67

    Mostly Sunny

    • 58
    • 67

    Mostly Sunny

Today 20 Jul San Francisco Bay Shoreline

Mostly cloudy. A slight chance of Showers. Highs in the 70s to lower 80s. Northwest Winds 5 to 15 Mph.

Tonight 20 Jul San Francisco Bay Shoreline

Mostly cloudy. A slight chance of Showers. Lows in the lower 60s. Northwest Winds 5 to 10 Mph.

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San Francisco Bay - South San Francisco Temperature Statistics

July Temperature

San Francisco, San Francisco International Airport (3.1 miles)

  • Lowest 11 July, 2026

    53.7 °F

  • Average July

    63.7 °F

  • Highest 14 July, 2026

    83.6 °F

Climate (2021–2026)

San Francisco, San Francisco International Airport (3.1 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    66.8 °F
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