Mira Costa Weather Forecast

    • 50
    • 68

    Mostly Sunny

    • 51
    • 69

    Mostly Sunny

    • 55
    • 75

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

    • 54
    • 75

    Mostly Sunny

    • 54
    • 73

    Mostly Sunny

Today 6 Dec San Diego County Coastal Areas

Sunny. Highs 65 to 68 near the coast to 70 inland. Light Winds becoming west 10 Mph this afternoon.

Tonight 6 Dec San Diego County Coastal Areas

Partly cloudy. Patchy dense fog. Local visibility one quarter mile or less at Times. Lows 47 to 51. Light Winds.

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Mira Costa Temperature Statistics

December Temperature

Oceanside, Oceanside Municipal Airport (2.5 miles)

  • Lowest 2 December, 2025

    41 °F

  • Average December

    58.4 °F

  • Highest 4 December, 2025

    71.1 °F

Climate (2020–Present)

Oceanside, Oceanside Municipal Airport (2.5 miles)

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  • Average Low 2020–2025

    52.7 °F

  • Average 2020–2025

    62.3 °F

  • Average High 2020–2025

    71.6 °F
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