San Clemente Island - Mosquito Cove Weather Forecast

    • 59
    • 69

    Mostly Sunny

    • 60
    • 71

    Increasing Clouds

    • 57
    • 70

    Mostly Cloudy

    • 56
    • 71

    Rain Showers Likely

    • 56
    • 69

    Chance Rain Showers

    • 54
    • 67

    Partly Sunny

    • 55
    • 67

    Partly Sunny

Today 7 Apr Catalina and Santa Barbara Islands

Areas of low Clouds and fog in the morning then sunny. Fog locally dense with visibility one quarter mile or less. Highs in the mid to upper 60s.

Tonight 7 Apr Catalina and Santa Barbara Islands

Mostly clear in the evening then partly cloudy. Lows around 60.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Clemente Island - Mosquito Cove Temperature Statistics

April Temperature

San Clemente Island NALF (14.9 miles)

  • Lowest 3 April, 2026

    58.6 °F

  • Average April

    63.5 °F

  • Highest 1 April, 2026

    68 °F

Climate (2021–Present)

San Clemente Island NALF (14.9 miles)

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  • Average Low 2021–2026

    57.4 °F

  • Average 2021–2026

    61.8 °F

  • Average High 2021–2026

    66.3 °F
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