Downtown (South San Francisco) Weather Forecast

    • 58
    • 73

    Becoming Sunny

    • 59
    • 74

    Partly Sunny

    • 60
    • 77

    Mostly Sunny

    • 59
    • 74

    Mostly Sunny

    • 59
    • 72

    Partly Sunny

    • 59
    • 72

    Partly Sunny

Today 6 Aug San Francisco Bay Shoreline

Mostly cloudy in the morning then becoming sunny. Highs in the 70s to mid 80s. Northwest Winds up to 5 Mph increasing to 5 to 15 Mph in the afternoon.

Tonight 6 Aug San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s. West Winds 10 to 15 Mph decreasing to up to 5 Mph after midnight.

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Downtown (South San Francisco) Temperature Statistics

August Temperature

San Francisco, San Francisco International Airport (3.1 miles)

  • Lowest 3 August, 2026

    55.9 °F

  • Average August

    66.6 °F

  • Highest 2 August, 2026

    80.7 °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

    58.7 °F

  • Average High 2021–2026

    66.8 °F
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