Coronado Island Weather Forecast

    • 54
    • 71

    Patchy Fog

    • 54
    • 68

    Mostly Cloudy

    • 54
    • 65

    Patchy Fog

    • 54
    • 67

    Mostly Cloudy

    • 54
    • 67

    Mostly Sunny

    • 57
    • 65

    Rain Showers Likely

    • 57
    • 66

    Rain Showers

Today 18 Dec San Diego County Coastal Areas

Mostly sunny. Warmer. Highs 69 to 74 near the coast to 76 to 81 inland. Areas of Winds northeast to 10 Mph becoming west 10 Mph this afternoon.

Tonight 18 Dec San Diego County Coastal Areas

Partly cloudy. Patchy fog overnight. Local visibility one quarter mile or less at Times overnight. Lows 51 to 55. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Coronado Island Temperature Statistics

December Temperature

San Diego, North Island, Naval Air Station (0.6 miles)

  • Lowest 7 December, 2025

    46.9 °F

  • Average December

    59.1 °F

  • Highest 9 December, 2025

    79 °F

Climate (2020–Present)

San Diego, North Island, Naval Air Station (0.6 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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