Coronado Weather Forecast

    • 66
    • 76

    Increasing Clouds

    • 66
    • 75

    Gradual Clearing

    • 66
    • 75

    Mostly Cloudy

    • 66
    • 76

    Mostly Sunny

    • 66
    • 77

    Partly Sunny

    • 66
    • 77

    Mostly Cloudy

    • 66
    • 76

    Partly Sunny

Today 15 Sep San Diego County Coastal Areas

Partly cloudy. Highs 73 to 77 near the coast to 77 to 81 inland.

Tonight 15 Sep San Diego County Coastal Areas

Partly cloudy this Evening, then mostly cloudy with patchy drizzle overnight. Lows 59 to 65. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Coronado Temperature Statistics

September Temperature

San Diego, North Island, Naval Air Station (1.2 miles)

  • Lowest 3 September, 2026

    63 °F

  • Average September

    74.6 °F

  • Highest 9 September, 2026

    91 °F

Climate (2021–2026)

San Diego, North Island, Naval Air Station (1.2 miles)

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  • Average Low 2021–2026

    57.7 °F

  • Average 2021–2026

    63.5 °F

  • Average High 2021–2026

    69.6 °F
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