Oceanside Municipal Airport Weather Forecast

    • 48
    • 65

    Patchy Fog

    • 48
    • 67

    Patchy Fog

    • 48
    • 67

    Mostly Cloudy

    • 55
    • 66

    Rain Showers

    • 53
    • 69

    Rain Showers

    • 50
    • 66

    Rain Showers

Today 20 Dec San Diego County Coastal Areas

Mostly cloudy this morning. Becoming partly cloudy. Patchy fog this morning. Local visibility one quarter mile or less at Times this morning. Highs 63 to 66 near the coast to 70 inland. Light Winds.

Tonight 20 Dec San Diego County Coastal Areas

Mostly cloudy. Patchy fog overnight. Lows 48 to 52. Light Winds.

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  • Temperature Forecast NOAA

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Oceanside Municipal Airport Temperature Statistics

December Temperature

Oceanside, Oceanside Municipal Airport (0 miles)

  • Lowest 2 December, 2025

    41 °F

  • Average December

    60 °F

  • Highest 9 December, 2025

    79 °F

Climate (2020–Present)

Oceanside, Oceanside Municipal Airport (0 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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