South Bay Park Weather Forecast

    • 67
    • 73

    Increasing Clouds

    • 67
    • 73

    Mostly Cloudy

    • 66
    • 72

    Partly Sunny

    • 65
    • 73

    Mostly Sunny

    • 66
    • 73

    Mostly Sunny

    • 66
    • 74

    Partly Sunny

Today 14 Sep San Diego County Coastal Areas

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 74 to 77 near the coast to 78 to 82 inland. Areas of Winds south 10 Mph.

Tonight 14 Sep San Diego County Coastal Areas

Partly cloudy this evening. Becoming cloudy. Lows 60 to 65. Areas of Winds south 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Bay Park Temperature Statistics

September Temperature

Imperial Beach Naval Outlying Field - Ream Field (1.2 miles)

  • Lowest 3 September, 2026

    57.9 °F

  • Average September

    73.8 °F

  • Highest 9 September, 2026

    89.1 °F

Climate (2021–2026)

Imperial Beach Naval Outlying Field - Ream Field (1.2 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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