Mission Bay - San Juan Cove Weather Forecast

    • 69
    • 77

    Chance Thunderstorms

    • 69
    • 78

    Chance Thunderstorms

    • 68
    • 76

    Slight Chance Thunderstorms

    • 67
    • 75

    Partly Sunny

    • 68
    • 77

    Mostly Cloudy

    • 68
    • 78

    Patchy Fog

    • 67
    • 77

    Partly Sunny

Today 17 Sep San Diego County Coastal Areas

Mostly cloudy. A slight chance of Showers and Thunderstorms this afternoon. Highs 75 to 80 near the coast to 79 to 83 inland. Areas of Winds northwest to 10 Mph becoming west with Gusts to 25 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 17 Sep San Diego County Coastal Areas

Mostly cloudy this evening. Becoming partly cloudy. A chance of Showers and a slight chance of Thunderstorms. Lows 65 to 69. Areas of Winds northwest to 10 Mph this evening becoming light. Chance of measurable precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mission Bay - San Juan Cove Temperature Statistics

September Temperature

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

  • Lowest 13 September, 2025

    66 °F

  • Average September

    71.4 °F

  • Highest 7 September, 2025

    82 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    57.9 °F

  • Average 2020–2025

    63.9 °F

  • Average High 2020–2025

    70.8 °F
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