Mission Bay - Sail Bay Weather Forecast

    • 67
    • 73

    Partly Sunny

    • 66
    • 72

    Partly Sunny

    • 66
    • 72

    Mostly Sunny

    • 66
    • 73

    Mostly Sunny

    • 67
    • 74

    Mostly Sunny

    • 67
    • 74

    Mostly 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 in the evening. Becoming mostly cloudy overnight with patchy fog. Lows 60 to 65. Areas of Winds south 10 Mph in the evening becoming light.

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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

    78 °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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