San Diego Bay - National City Weather Forecast

    • 67
    • 72

    Chance Rain Showers

    • 66
    • 76

    Slight Chance Thunderstorms

    • 60
    • 72

    Partly Sunny

    • 60
    • 71

    Partly Sunny

    • 60
    • 68

    Partly Sunny

    • 59
    • 68

    Partly Sunny

Today 9 Oct San Diego County Coastal Areas

Partly cloudy. A chance of Showers and a slight chance of Thunderstorms this afternoon. Highs 71 to 76 near the coast to 75 to 78 inland. Areas of Winds north 10 Mph. Chance of measurable precipitation 40 percent.

Tonight 9 Oct San Diego County Coastal Areas

Partly cloudy. A chance of Showers. Lows 62 to 66. Areas of Winds northwest 10 Mph. Chance of measurable precipitation 30 percent.

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San Diego Bay - National City Temperature Statistics

October Temperature

San Diego, North Island, Naval Air Station (5 miles)

  • Lowest 4 October, 2025

    59 °F

  • Average October

    66.6 °F

  • Highest 1 October, 2025

    73.9 °F

Climate (2020–Present)

San Diego, North Island, Naval Air Station (5 miles)

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  • Average Low 2020–2025

    57.3 °F

  • Average 2020–2025

    63 °F

  • Average High 2020–2025

    69.2 °F
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