Moonlight State Beach Weather Forecast

    • 57
    • 62

    Mostly Cloudy

    • 59
    • 64

    Rain Showers

    • 61
    • 65

    Rain Showers

    • 57
    • 63

    Rain Showers

    • 52
    • 60

    Rain Showers

    • 49
    • 60

    Slight Chance Rain Showers

    • 51
    • 62

    Partly Sunny

Today 22 Dec San Diego County Coastal Areas

Areas of fog this morning. Mostly cloudy. Local visibility one quarter mile or less at Times this morning. Highs 63 to 67 near the coast to 68 inland. Light Winds.

Tonight 22 Dec San Diego County Coastal Areas

Mostly cloudy. Patchy fog overnight. Lows 51 to 55. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Moonlight State Beach Temperature Statistics

December Temperature

Carlsbad, McClellan-Palomar Airport (5.6 miles)

  • Lowest 2 December, 2025

    48 °F

  • Average December

    58.1 °F

  • Highest 9 December, 2025

    80.1 °F

Climate (2020–Present)

Carlsbad, McClellan-Palomar Airport (5.6 miles)

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  • Average Low 2020–2025

    56.6 °F

  • Average 2020–2025

    62.4 °F

  • Average High 2020–2025

    68.7 °F
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