Mission Beach Weather Forecast

    • 53
    • 67

    Partly Sunny

    • 55
    • 72

    Mostly Sunny

    • 54
    • 71

    Patchy Fog

    • 53
    • 67

    Patchy Fog

    • 54
    • 67

    Mostly Cloudy

    • 54
    • 67

    Mostly Cloudy

Today 17 Dec San Diego County Coastal Areas

Mostly cloudy this morning. Becoming mostly sunny. Areas of fog this morning. Local visibility one quarter mile or less at Times this morning. Highs 65 to 70 near the coast to 71 to 74 inland. Light Winds becoming west 10 Mph this afternoon.

Tonight 17 Dec San Diego County Coastal Areas

Partly cloudy. Patchy fog overnight. Lows 49 to 54. Light Winds.

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Mission Beach Temperature Statistics

December Temperature

San Diego, San Diego International-Lindbergh Field (4.3 miles)

  • Lowest 5 December, 2025

    46 °F

  • Average December

    59.3 °F

  • Highest 10 December, 2025

    80.1 °F

Climate (2020–Present)

San Diego, San Diego International-Lindbergh Field (4.3 miles)

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  • Average Low 2020–2025

    57.9 °F

  • Average 2020–2025

    63.8 °F

  • Average High 2020–2025

    70.7 °F
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