San Diego Bay Weather Forecast

    • 56
    • 66

    Patchy Fog

    • 59
    • 70

    Partly Sunny

    • 57
    • 69

    Mostly Cloudy

    • 57
    • 64

    Mostly Cloudy

    • 57
    • 66

    Patchy Fog

    • 57
    • 65

    Mostly Cloudy

    • 58
    • 64

    Chance Rain Showers

Today 17 Dec San Diego County Coastal Areas

Mostly cloudy this morning. Becoming mostly sunny. Areas of fog this morning. Local visibility one quarter mile or less at Times this morning. Highs 65 to 70 near the coast to 71 to 74 inland. Light Winds becoming west 10 Mph this afternoon.

Tonight 17 Dec San Diego County Coastal Areas

Partly cloudy. Patchy fog. Local visibility one quarter mile or less at Times. Lows 49 to 53. Light Winds.

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San Diego Bay Temperature Statistics

December Temperature

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

  • Lowest 7 December, 2025

    46.9 °F

  • Average December

    59.2 °F

  • Highest 9 December, 2025

    79 °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 °F

  • Average High 2020–2025

    69.1 °F
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