Mission Bay - Sail Bay Weather Forecast

    • 66
    • 72

    Decreasing Clouds

    • 66
    • 72

    Decreasing Clouds

    • 66
    • 72

    Mostly Cloudy

    • 66
    • 73

    Partly Sunny

    • 67
    • 73

    Partly Sunny

    • 67
    • 73

    Mostly Cloudy

    • 67
    • 72

    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 Real-Time

Mission Bay - Sail Bay Temperature Statistics

September Temperature

San Diego, San Diego International-Lindbergh Field (5 miles)

  • Lowest 3 September, 2026

    63.6 °F

  • Average September

    77.6 °F

  • Highest 6 September, 2026

    95.6 °F

Climate (2021–2026)

San Diego, San Diego International-Lindbergh Field (5 miles)

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  • Average Low 2021–2026

    58.1 °F

  • Average 2021–2026

    64.2 °F

  • Average High 2021–2026

    71.1 °F
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