San Diego Bay - National City Weather Forecast

    • 71
    • 83

    Decreasing Clouds

    • 70
    • 79

    Partly Sunny

    • 68
    • 78

    Partly Sunny

    • 68
    • 78

    Partly Sunny

    • 70
    • 78

    Mostly Cloudy

    • 70
    • 79

    Partly Sunny

Today 29 Aug San Diego County Coastal Areas

Partly cloudy this morning. Becoming mostly sunny. Highs 81 to 86 near the coast to 89 to 94 inland. Areas of Winds west to 10 Mph.

Tonight 29 Aug San Diego County Coastal Areas

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 66 to 70. Areas of Winds west to 10 Mph in the evening becoming light.

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San Diego Bay - National City Temperature Statistics

August Temperature

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

  • Lowest 21 August, 2026

    66.9 °F

  • Average August

    73.5 °F

  • Highest 26 August, 2026

    84 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    57.7 °F

  • Average 2021–2026

    63.4 °F

  • Average High 2021–2026

    69.5 °F
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