Coronado Island Weather Forecast

    • 65
    • 73

    Increasing Clouds

    • 68
    • 76

    Decreasing Clouds

    • 69
    • 79

    Partly Sunny

    • 69
    • 80

    Mostly Cloudy

    • 69
    • 79

    Chance Rain Showers

    • 69
    • 78

    Chance Rain Showers

    • 67
    • 77

    Patchy Fog

Today 14 Sep San Diego County Coastal Areas

Mostly cloudy this morning. Becoming mostly sunny. Patchy fog this morning. Highs 71 to 75 near the coast to 80 inland. Light Winds becoming west 10 Mph this afternoon.

Tonight 14 Sep San Diego County Coastal Areas

Partly cloudy this evening. Becoming cloudy. Patchy fog overnight. Lows 60 to 64. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Coronado Island Temperature Statistics

September Temperature

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

  • Lowest 6 September, 2025

    64.9 °F

  • Average September

    71.1 °F

  • Highest 7 September, 2025

    80.1 °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

    63.1 °F

  • Average High 2020–2025

    69.3 °F
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