San Diego Bay Weather Forecast

    • 70
    • 76

    Increasing Clouds

    • 71
    • 74

    Chance Rain Showers

    • 70
    • 73

    Chance Rain Showers

    • 68
    • 72

    Partly Sunny

    • 68
    • 72

    Mostly Cloudy

    • 69
    • 73

    Mostly Cloudy

Today 16 Sep San Diego County Coastal Areas

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 77 to 82 near the coast to 85 to 90 inland. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 16 Sep San Diego County Coastal Areas

Partly cloudy. Lows 66 to 69. Areas of Winds northwest 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Diego Bay Temperature Statistics

September Temperature

San Diego, North Island, Naval Air Station (3.7 miles)

  • Lowest 6 September, 2025

    64.9 °F

  • Average September

    70.8 °F

  • Highest 7 September, 2025

    80.1 °F

Climate (2020–Present)

San Diego, North Island, Naval Air Station (3.7 miles)

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  • Average Low 2020–2025

    57.3 °F

  • Average 2020–2025

    63.1 °F

  • Average High 2020–2025

    69.3 °F
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