Harborside Park Weather Forecast

    • 65
    • 73

    Increasing Clouds

    • 65
    • 73

    Partly Sunny

    • 64
    • 73

    Partly Sunny

    • 65
    • 75

    Partly Sunny

    • 66
    • 74

    Mostly Cloudy

    • 65
    • 73

    Partly Sunny

Today 16 Sep San Diego County Coastal Areas

Partly cloudy this morning. Becoming mostly sunny. Highs 72 to 75 near the coast to 75 to 79 inland. Areas of Winds south 10 Mph.

Tonight 16 Sep San Diego County Coastal Areas

Partly cloudy in the evening. Becoming mostly cloudy. Lows 59 to 65. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harborside Park Temperature Statistics

September Temperature

Imperial Beach Naval Outlying Field - Ream Field (3.1 miles)

  • Lowest 3 September, 2026

    57.9 °F

  • Average September

    73.4 °F

  • Highest 9 September, 2026

    89.1 °F

Climate (2021–2026)

Imperial Beach Naval Outlying Field - Ream Field (3.1 miles)

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  • Average Low 2021–2026

    56.5 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    69.5 °F
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