San Francisco International Airport Weather Forecast

    • 65
    • 89

    Becoming Sunny

    • 61
    • 80

    Partly Sunny

    • 59
    • 73

    Mostly Sunny

    • 58
    • 67

    Breezy

    • 58
    • 69

    Breezy

    • 58
    • 69

    Mostly Sunny

Today 9 Sep San Francisco Bay Shoreline

Partly cloudy in the morning then becoming sunny. Highs in the lower to mid 90s. Light Winds. Becoming northwest 10 to 20 Mph in the afternoon.

Tonight 9 Sep San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 60s to lower 70s. West Winds 10 to 15 Mph. Becoming southwest up to 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Francisco International Airport Temperature Statistics

September Temperature

San Francisco, San Francisco International Airport (0 miles)

  • Lowest 4 September, 2026

    58.6 °F

  • Average September

    66.2 °F

  • Highest 5 September, 2026

    74.6 °F

Climate (2021–2026)

San Francisco, San Francisco International Airport (0 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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