Anchorage water temp

This data the coastal Anchorage 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 Anchorage

Water temperature in Anchorage today is 55.2°F. Based on our historical data over a period of ten years, the warmest water in this day in the Gulf of Alaska near Anchorage was recorded in 2019 and was 58.1°F, and the coldest was recorded in 2012 at 51.1°F. Sea water temperature in Anchorage is expected to drop to 51.8°F in the next 10 days. September average water temperature in Anchorage is 53.8°F, the minimum temperature is 47.8°F, and the maximum is 59.7°F.

Throughout the year, the water temperature in Anchorage does not rise above 68°F and therefore is not suitable for comfortable swimming. The average water temperature in Anchorage in winter reaches 36°F, in spring 37.6°F, in summer the average temperature rises to 55.6°F, and in autumn it is 46°F.

Anchorage water temperature now

The ocean salinity in Anchorage is 19.58‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Anchorage 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 Anchorage. 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 Anchorage. Data in table shown for September 16, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Anchorage

Anchorage weather forecast

Current temperature and weather

Data in a table show Anchorage temperature today (September 16, 2025). For more information and forecast for a few days, go to the weather forecast Anchorage.

0-3 h	3-6 h	6-9 h	9-12 h
43.2°F	42.4°F	44.4°F	45.5°F

12-15 h	15-18 h	18-21 h	21-24 h
49.8°F	52.7°F	51.4°F	48.6°F

Anchorage water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Anchorage. 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 Anchorage 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 Anchorage

The nearest beaches and cities from Anchorage 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	51.6°F	48.2°F		0' 4"
Kenai	53.8°F	51.8°F		1' 8"
Seward	53.6°F	48.2°F		1' 1"
Cook Inlet	53.6°F	50°F		2' 9"
Prince William Sound	54.3°F	48.2°F		2' 2"
Anchor Point	51.3°F	51.8°F		3' 8"
Homer	51.8°F	50°F		1' 1"
Valdez	52°F	44.6°F		1' 3"
Cordova	54°F	55.4°F		2' 3"
Kodiak	50.5°F	50°F		4' 10"

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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.