Moonlight State Beach Weather Forecast

    • 61
    • 69

    Mostly Cloudy

    • 60
    • 69

    Mostly Cloudy

    • 59
    • 67

    Partly Sunny

    • 58
    • 66

    Partly Sunny

    • 58
    • 66

    Partly Sunny

    • 58
    • 65

    Partly Sunny

Today 20 May San Diego County Coastal Areas

Partly cloudy this morning. Becoming mostly sunny. Highs 68 to 72 near the coast to 74 to 79 inland. Areas of Winds southwest to 10 Mph.

Tonight 20 May San Diego County Coastal Areas

Mostly clear this evening. Becoming partly cloudy. Patchy fog overnight. Lows 55 to 59. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Moonlight State Beach Temperature Statistics

May Temperature

Carlsbad, McClellan-Palomar Airport (5.6 miles)

  • Lowest 6 May, 2026

    54.6 °F

  • Average May

    63.9 °F

  • Highest 8 May, 2026

    69.7 °F

Climate (2021–Present)

Carlsbad, McClellan-Palomar Airport (5.6 miles)

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  • Average Low 2021–2026

    56.9 °F

  • Average 2021–2026

    62.8 °F

  • Average High 2021–2026

    69.2 °F
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