Prince William Sound water temp

This data the coastal Prince William Sound ocean water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current ocean temperature in Prince William Sound

Water temperature in Prince William Sound today is 50.2°F. Based on our historical data over a period of ten years, the warmest water in this day in the Gulf of Alaska near Prince William Sound was recorded in 2018 and was 49.8°F, and the coldest was recorded in 2012 at 44.8°F. Sea water temperature in Prince William Sound is expected to drop to 46.6°F in the next 10 days. October average water temperature in Prince William Sound is 48.7°F, the minimum temperature is 42.6°F, and the maximum is 53.1°F.

Throughout the year, the water temperature in Prince William Sound does not rise above 68°F and therefore is not suitable for comfortable swimming. The average water temperature in Prince William Sound in winter reaches 41.2°F, in spring 41.9°F, in summer the average temperature rises to 55.4°F, and in autumn it is 49.3°F.

Prince William Sound water temperature now

The ocean salinity in Prince William Sound is 30.31‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Prince William Sound for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Prince William Sound. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Prince William Sound. Data in table shown for October 24, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Prince William Sound

Prince William Sound weather forecast

Current temperature and weather

Data in a table show Prince William Sound temperature today (October 24, 2025). For more information and forecast for a few days, go to the weather forecast Prince William Sound.

0-3 h	3-6 h	6-9 h	9-12 h
37.6°F	38.8°F	38.3°F	37.9°F

12-15 h	15-18 h	18-21 h	21-24 h
40.5°F	40.5°F	38.8°F	39.7°F

Prince William Sound water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Prince William Sound. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Prince William Sound on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Prince William Sound

The nearest beaches and cities from Prince William Sound with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Whittier	47.7°F	39.2°F		0' 11"
Cook Inlet	48.6°F	41°F		1' 3"
Homer	48.4°F	41°F		2' 1"
Anchor Point	48.9°F	42.8°F		2' 4"
Yakutat	50.5°F	44.6°F		10' 3"
Haines	46.6°F	41°F		0' 1"
Glacier Bay	44.6°F	44.6°F		0' 9"
Dillingham	41.7°F	30.2°F		1' 6"
Skagway	46.8°F	41°F		0' 1"
Gustavus	45.7°F	44.6°F		1' 3"

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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.