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Water temperature in Anchorage (AK) in December

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Is it warm enough to swim in Anchorage in December? Average water temperature in Anchorage in December is 36.7°F and therefore is not suitable for comfortable swimming. The warmest sea in Anchorage in December is 39.4°F, and the coldest is 32.4°F. Average high air temperature in Anchorage in December is 24°F, and average low temperature is 13°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Anchorage

Changes water temperature in Anchorage in December 2024, 2023

To get an accurate forecast for the water temperature in Anchorage for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Anchorage, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of December.

You can choose any other years:

Year 1:   Year 2:


Day 2024 2023 Min Max
December 135.6°F33.8°F33.8°F39.4°F
December 235.8°F32.4°F32.4°F39.4°F
December 336°F32.9°F32.9°F39.2°F
December 436.1°F33.4°F33.4°F39.2°F
December 536.1°F33.8°F33.8°F39°F
December 636.1°F34.2°F34.2°F39°F
December 736.3°F33.8°F33.8°F38.8°F
December 836.3°F34.2°F34.2°F38.3°F
December 936.5°F34.3°F34.3°F38.3°F
December 1036.5°F34.7°F34.7°F38.1°F
December 1136.7°F34.9°F33.1°F38.3°F
December 1236.7°F33.1°F33.1°F38.1°F
December 1336.5°F33.3°F33.3°F38.3°F
December 1436.5°F33.6°F33.6°F38.1°F
December 1536.7°F33.8°F33.4°F38.1°F
Day 2024 2023 Min Max
December 1636.7°F34.2°F33.8°F38.1°F
December 1736.7°F34.5°F33.4°F38.3°F
December 1836.7°F34.5°F33.4°F38.1°F
December 1936.7°F34.7°F33.1°F38.3°F
December 2036.7°F34.9°F32.5°F37.9°F
December 2136.7°F35.1°F33.1°F37.9°F
December 2236.9°F35.2°F33.1°F37.9°F
December 2336.9°F35.4°F33.4°F37.9°F
December 2436.9°F35.6°F33.8°F37.9°F
December 2536.9°F35.8°F34°F38.1°F
December 2636.9°F34.2°F34.2°F38.1°F
December 2736.3°F34.3°F34.3°F38.1°F
December 2836.3°F34.7°F34.7°F38.1°F
December 2936.3°F34.7°F34.7°F38.1°F
December 3034.2°F34.9°F34.2°F38.3°F
December 3134.3°F35.1°F34.3°F38.1°F
Anchorage water temp chart in December

Average water temperature in Anchorage in December over a decade

20152016201720182019
37.4°F37.6°F37.6°F37°F34.7°F
20202021202220232024
36°F37.2°F36°F34.3°F36.3°F

Anchorage sea state in December

Chart comparing the height of waves in Anchorage in December over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Anchorage in December

Weather and climate in Anchorage in December

This data display average monthly climate indicators in Anchorage in December based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature24°F
  • Average LOW temperature13°F
  • Average humidity
    77
  • Average rainfall days11 days
  • Average rainfall28mm/1.1''
  • Average daylight6h
  • Average sunshine1.7h
  • Average snowfall521mm/20.5''

Anchorage water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in December?

Want to know where the water temperature in December is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in December. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Whittier40.6°F37°F43.9°F
Kenai36.5°F32.2°F41°F
Seward42.4°F39.2°F46.9°F
Cook Inlet37.4°F31.6°F42.6°F
Prince William Sound42.8°F39.9°F45.9°F
Anchor Point41.7°F37°F45.7°F
Homer41.9°F37.6°F45.7°F
Valdez42.6°F39.6°F45.5°F
Cordova43°F39.9°F46.2°F
Kodiak41.2°F37.8°F43.9°F

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Anchorage is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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