San Clemente Island - Northwest Harbor Weather Forecast

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    Rain Showers

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    Chance Rain Showers

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    Rain Showers Likely

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    Rain Showers Likely

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    Chance Rain Showers

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    Chance Rain Showers

Today 1 Jan Catalina and Santa Barbara Islands

Rain with a chance of Thunderstorms in the Morning, then a chance of rain with a slight chance of Thunderstorms in the afternoon. Highs in the lower to mid 60s. South Winds 15 to 25 Mph in the morning.

Tonight 1 Jan Catalina and Santa Barbara Islands

Mostly cloudy. Lows in the lower to mid 50s.

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San Clemente Island - Northwest Harbor Temperature Statistics

January Temperature

San Clemente Island NALF (0.6 miles)

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Climate (2021–Present)

San Clemente Island NALF (0.6 miles)

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  • Average Low 2021–2025

    56.9 °F

  • Average 2021–2025

    61.4 °F

  • Average High 2021–2025

    66 °F
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