Steinberger Slough - Mariner Park Weather Forecast

    • 63
    • 86

    Increasing Clouds

    • 63
    • 79

    Chance Rain Showers

    • 63
    • 79

    Chance Rain Showers

    • 62
    • 80

    Mostly Sunny

    • 62
    • 83

    Mostly Sunny

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    • 85

    Chance Rain Showers

Today 17 Sep San Francisco Bay Shoreline

Partly cloudy in the morning then becoming sunny. Highs in the 70s to upper 80s. Northwest Winds up to 5 Mph increasing to 5 to 15 Mph in the afternoon.

Tonight 17 Sep San Francisco Bay Shoreline

Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 60s. West Winds 10 to 15 Mph decreasing to around 5 Mph after midnight.

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Steinberger Slough - Mariner Park Temperature Statistics

September Temperature

San Carlos Airport (0 miles)

  • Lowest 4 September, 2025

    59 °F

  • Average September

    66.2 °F

  • Highest 1 September, 2025

    89.6 °F

Climate (2020–Present)

San Carlos Airport (0 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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