San Francisco Bay - Fort Mason Weather Forecast

    • 65
    • 74

    Increasing Clouds

    • 65
    • 79

    Partly Sunny

    • 61
    • 67

    Partly Sunny

    • 60
    • 63

    Breezy

    • 59
    • 63

    Breezy

    • 59
    • 64

    Partly Sunny

Today 8 Sep San Francisco

Sunny in the morning then becoming partly cloudy. Highs in the 70s to lower 80s. West Winds 5 to 10 Mph.

Tonight 8 Sep San Francisco

Mostly cloudy. Lows in the mid 60s. Southwest Winds 5 to 10 Mph.

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San Francisco Bay - Fort Mason Temperature Statistics

September Temperature

Oakland, Metro Oakland International Airport (12.4 miles)

  • Lowest 4 September, 2026

    55.7 °F

  • Average September

    65.8 °F

  • Highest 2 September, 2026

    73.7 °F

Climate (2021–2026)

Oakland, Metro Oakland International Airport (12.4 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    58.9 °F

  • Average High 2021–2026

    67.2 °F
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