Surprise Cove State Marine Park Weather Forecast

Today 3 Dec West Prince William Sound & Whittier

Rain. Highs in the lower 40s. Variable wind 10 Mph.

Tonight 3 Dec West Prince William Sound & Whittier

Mostly cloudy with a chance of rain. Lows near 40. Light Winds.

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Surprise Cove State Marine Park Temperature Statistics

December Temperature

Portage, Portage Glacier (14.9 miles)

  • Lowest 1 December, 2025

    32 °F

  • Average December

    34.4 °F

  • Highest 1 December, 2025

    39.9 °F

Climate (2020–Present)

Portage, Portage Glacier (14.9 miles)

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  • Average Low 2020–2025

    33.5 °F

  • Average 2020–2025

    39.3 °F

  • Average High 2020–2025

    44.8 °F
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