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Water temperature in Prince William Sound (AK) in October

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Is it warm enough to swim in Prince William Sound in October? Average water temperature in Prince William Sound in October is 48.7°F and therefore is not suitable for comfortable swimming. The warmest sea in Prince William Sound in October is 53.1°F, and the coldest is 42.6°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Prince William Sound

Changes water temperature in Prince William Sound in October 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
October 1 50.7°F48°F53.1°F
October 2 50.2°F48°F53.1°F
October 3 50.9°F48°F52.7°F
October 4 50.7°F48°F52.9°F
October 5 50.5°F48.4°F52.9°F
October 6 50.5°F48.7°F52.3°F
October 7 50.2°F48.4°F52°F
October 8 49.8°F48.2°F51.6°F
October 9 49.5°F48°F51.6°F
October 10 49.5°F47.1°F51.6°F
October 11 49.8°F45.7°F51.3°F
October 12 49.5°F43.7°F50.7°F
October 13 49.1°F44.8°F50.7°F
October 14 48.9°F46.2°F50.7°F
October 15 49.1°F46.2°F50.5°F
Day 2025 2024 Min Max
October 16 48.6°F45.9°F50.9°F
October 17 48.7°F45.9°F50.5°F
October 18 48.2°F45.9°F50.2°F
October 19 48.2°F45.7°F50.2°F
October 20 47.7°F45.7°F50.4°F
October 21 47.5°F45.5°F50°F
October 22 47.3°F44.8°F49.8°F
October 23 46.6°F45.3°F49.5°F
October 24 46.8°F44.8°F49.8°F
October 25 46.8°F44.6°F49.6°F
October 26 46.9°F43.9°F49.3°F
October 27 46.8°F43.7°F49.1°F
October 28 46.6°F43.7°F48.7°F
October 29 46.6°F42.6°F48.7°F
October 30 46.6°F42.8°F48.7°F
October 31 46.4°F43°F48.6°F
Prince William Sound water temp chart in October

Average water temperature in Prince William Sound in October over a decade

20152016201720182019
49.5°F48.7°F49.6°F50.5°F50.4°F
20202021202220232024
49.6°F48.2°F50°F48.9°F48.6°F

Prince William Sound sea state in October

Chart comparing the height of waves in Prince William Sound in October 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 Prince William Sound in October

Prince William Sound 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 October?

Want to know where the water temperature in October 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 October. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Whittier46.6°F39°F51.1°F
Cook Inlet48°F42.1°F52.7°F
Homer48°F44.1°F50.9°F
Anchor Point48°F44.2°F51.4°F
Yakutat50.2°F46.4°F54.7°F
Haines46.6°F42.4°F50°F
Glacier Bay46.4°F42.8°F49.8°F
Dillingham42.1°F32.2°F49.8°F
Skagway46.4°F42.6°F49.8°F
Gustavus46.8°F43.2°F50.2°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 Prince William Sound 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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