Fairmount Park Weather Forecast

    • 68
    • 82

    Partly Sunny

    • 69
    • 82

    Partly Sunny

    • 70
    • 87

    Partly Sunny

    • 70
    • 87

    Partly Sunny

    • 68
    • 82

    Partly Sunny

Today 23 Sep San Diego County Coastal Areas

Partly cloudy this morning. Becoming mostly sunny. Highs 77 to 82 near the coast to 82 to 87 inland. Light Winds becoming west 10 Mph this afternoon.

Tonight 23 Sep San Diego County Coastal Areas

Partly cloudy in the evening. Becoming mostly cloudy overnight with patchy fog. Lows 64 to 68. Light Winds.

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Fairmount Park Temperature Statistics

September Temperature

San Diego, San Diego International-Lindbergh Field (3.7 miles)

  • Lowest 3 September, 2026

    63.6 °F

  • Average September

    76.3 °F

  • Highest 6 September, 2026

    95.6 °F

Climate (2021–2026)

San Diego, San Diego International-Lindbergh Field (3.7 miles)

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  • Average Low 2021–2026

    58.1 °F

  • Average 2021–2026

    64.2 °F

  • Average High 2021–2026

    71.2 °F
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