San Francisco Bay - Greco Island Weather Forecast

    • 62
    • 71

    Becoming Sunny

    • 58
    • 65

    Increasing Clouds

    • 57
    • 62

    Partly Sunny

    • 58
    • 70

    Mostly Sunny

    • 58
    • 72

    Mostly Sunny

    • 58
    • 72

    Mostly Sunny

    • 58
    • 71

    Mostly Sunny

Today 21 Jul San Francisco Bay Shoreline

Sunny. Highs in the mid 80s to lower 90s. West Winds 5 to 15 Mph.

Tonight 21 Jul San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 60s. West Winds 5 to 15 Mph.

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  • Temperature Real-Time

San Francisco Bay - Greco Island Temperature Statistics

July Temperature

San Carlos Airport (3.7 miles)

  • Lowest 1 July, 2026

    55.4 °F

  • Average July

    62.5 °F

  • Highest 14 July, 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

    68.3 °F
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