South Oceanside Beach Weather Forecast

    • 55
    • 64

    Partly Sunny

    • 55
    • 67

    Partly Sunny

    • 56
    • 66

    Partly Sunny

    • 56
    • 67

    Mostly Cloudy

    • 55
    • 66

    Mostly Cloudy

    • 55
    • 63

    Mostly Cloudy

Today 15 Dec San Diego County Coastal Areas

Patchy fog in the morning. Partly cloudy. Highs 66 to 71 near the coast to 72 to 75 inland. Light Winds becoming northwest 10 Mph in the afternoon.

Tonight 15 Dec San Diego County Coastal Areas

Partly cloudy. Lows 49 to 53. Light Winds.

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South Oceanside Beach Temperature Statistics

December Temperature

Oceanside, Oceanside Municipal Airport (3.1 miles)

  • Lowest 2 December, 2025

    41 °F

  • Average December

    62 °F

  • Highest 9 December, 2025

    79 °F

Climate (2020–Present)

Oceanside, Oceanside Municipal Airport (3.1 miles)

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  • Average Low 2020–2025

    52.8 °F

  • Average 2020–2025

    62.3 °F

  • Average High 2020–2025

    71.6 °F
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