San Francisco Bay - San Mateo Bridge (West End) Weather Forecast

    • 60
    • 62

    Gradual Clearing

    • 61
    • 64

    Partly Sunny

    • 62
    • 65

    Partly Sunny

    • 61
    • 65

    Mostly Cloudy

    • 60
    • 63

    Mostly Cloudy

    • 59
    • 63

    Mostly Cloudy

Today 5 Sep San Francisco Bay Shoreline

Mostly cloudy in the morning then becoming partly cloudy. Highs in the lower to mid 70s. West Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 5 Sep San Francisco Bay Shoreline

Mostly cloudy. Lows in the lower 60s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Francisco Bay - San Mateo Bridge (West End) Temperature Statistics

September Temperature

San Carlos Airport (4.3 miles)

  • Lowest 1 September, 2025

    60.8 °F

  • Average September

    67 °F

  • Highest 1 September, 2025

    89.6 °F

Climate (2020–Present)

San Carlos Airport (4.3 miles)

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  • Average Low 2020–2025

    51.2 °F

  • Average 2020–2025

    56.5 °F

  • Average High 2020–2025

    68.2 °F
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