San Onofre State Beach Weather Forecast

    • 61
    • 72

    Mostly Sunny

    • 63
    • 73

    Partly Sunny

    • 63
    • 72

    Mostly Cloudy

    • 62
    • 72

    Partly Sunny

    • 63
    • 73

    Mostly Sunny

    • 64
    • 74

    Partly Sunny

Today 18 Sep San Diego County Coastal Areas

Partly cloudy in the morning. Becoming mostly sunny. Highs 73 to 77. Light Winds becoming west 10 to 15 Mph in the afternoon.

Tonight 18 Sep San Diego County Coastal Areas

Mostly clear in the evening. Becoming partly cloudy. Lows 58 to 63. Areas of Winds northwest to 10 Mph in the evening becoming light.

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San Onofre State Beach Temperature Statistics

September Temperature

Mcolf Camp Pendleton (Red Beach) (5.6 miles)

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Climate (2021–2025)

Mcolf Camp Pendleton (Red Beach) (5.6 miles)

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  • Average Low 2021–2025

    56.6 °F

  • Average 2021–2025

    61.8 °F

  • Average High 2021–2025

    67.4 °F
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