San Francisco Bay - Greco Island Weather Forecast

    • 59
    • 66

    Becoming Sunny

    • 61
    • 67

    Mostly Sunny

    • 62
    • 71

    Mostly Sunny

    • 60
    • 80

    Mostly Sunny

    • 61
    • 78

    Mostly Sunny

    • 61
    • 76

    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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San Francisco Bay - Greco Island Temperature Statistics

August Temperature

San Carlos Airport (3.7 miles)

  • Lowest 1 August, 2026

    59 °F

  • Average August

    66.3 °F

  • Highest 2 August, 2026

    87.8 °F

Climate (2021–2026)

San Carlos Airport (3.7 miles)

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  • Average Low 2021–2026

    51.7 °F

  • Average 2021–2026

    57 °F

  • Average High 2021–2026

    68.4 °F
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