Santa Catalina Island - Isthmus Cove Weather Forecast

    • 57
    • 63

    Patchy Fog

    • 57
    • 66

    Patchy Fog

    • 56
    • 66

    Mostly Cloudy

    • 58
    • 67

    Rain Showers

    • 57
    • 68

    Rain Showers

    • 56
    • 66

    Rain Showers

Today 20 Dec Catalina and Santa Barbara Islands

Low Clouds and fog clearing to the Beaches in the afternoon. Fog locally dense with visibility one quarter mile or less. Highs in the lower to mid 60s.

Tonight 20 Dec Catalina and Santa Barbara Islands

Low Clouds and fog. Lows in the mid 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Catalina Island - Isthmus Cove Temperature Statistics

December Temperature

Torrance, Zamperini Field Airport (26.1 miles)

  • Lowest 5 December, 2025

    46.4 °F

  • Average December

    61.7 °F

  • Highest 9 December, 2025

    80.6 °F

Climate (2020–Present)

Torrance, Zamperini Field Airport (26.1 miles)

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  • Average Low 2020–2025

    55.9 °F

  • Average 2020–2025

    65.6 °F

  • Average High 2020–2025

    71.9 °F
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