Harbor Beach Weather Forecast

    • 51
    • 64

    Mostly Cloudy

    • 53
    • 63

    Cloudy

    • 56
    • 63

    Rain Showers

    • 55
    • 63

    Rain Showers

    • 54
    • 63

    Rain Showers

    • 52
    • 61

    Rain Showers Likely

Today 21 Dec San Diego County Coastal Areas

Mostly cloudy this morning. Becoming partly cloudy. Patchy fog this morning. Highs 64 to 68 near the coast to 68 to 72 inland. Light Winds becoming northwest 10 Mph this afternoon.

Tonight 21 Dec San Diego County Coastal Areas

Mostly cloudy. Patchy fog overnight. Lows 47 to 53. Areas of Winds northwest 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harbor Beach Temperature Statistics

December Temperature

Oceanside, Oceanside Municipal Airport (2.5 miles)

  • Lowest 2 December, 2025

    41 °F

  • Average December

    59.8 °F

  • Highest 9 December, 2025

    79 °F

Climate (2020–Present)

Oceanside, Oceanside Municipal Airport (2.5 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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