Dutch Harbor water temp

This data the coastal Dutch Harbor 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 Dutch Harbor

Water temperature in Dutch Harbor today is 48.4°F. Based on our historical data over a period of ten years, the warmest water in this day in Dutch Harbor was recorded in 2016 and was 51.6°F, and the coldest was recorded in 2009 at 45.9°F. Sea water temperature in Dutch Harbor is expected to drop to 47.5°F in the next 10 days. September average water temperature in Dutch Harbor is 47.5°F, the minimum temperature is 44.4°F, and the maximum is 53.4°F.

Throughout the year, the water temperature in Dutch Harbor does not rise above 68°F and therefore is not suitable for comfortable swimming. The average water temperature in Dutch Harbor in winter reaches 39.9°F, in spring 39.2°F, in summer the average temperature rises to 46.4°F, and in autumn it is 45.3°F.

Dutch Harbor water temperature now

The ocean salinity in Dutch Harbor is 32.22‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Dutch Harbor 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 Dutch Harbor. 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 Dutch Harbor. Data in table shown for September 6, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Dutch Harbor

Dutch Harbor weather forecast

Current temperature and weather

Data in a table show Dutch Harbor temperature today (September 6, 2025). For more information and forecast for a few days, go to the weather forecast Dutch Harbor.

0-3 h	3-6 h	6-9 h	9-12 h
49.1°F	48°F	47.3°F	47.7°F

12-15 h	15-18 h	18-21 h	21-24 h
50.5°F	52.5°F	53.1°F	51.1°F

Dutch Harbor water temperature by month

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

The nearest beaches and cities from Dutch Harbor 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
Unalaska	48.4°F	51.8°F		2' 6"
Sand Point	55°F	57.2°F		0' 9"
St. Paul	47.8°F	50°F		5' 9"
Bristol Bay	55°F	55.4°F		2' 4"
Togiak	55.2°F	55.4°F		0' 7"
Kipnuk	53.8°F	53.6°F		1' 10"
Dillingham	56.7°F	57.2°F		0' 6"
Kodiak	53.2°F	55.4°F		1' 0"
Anchor Point	52°F	53.6°F		1' 11"
Homer	53.1°F	50°F		0' 11"

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Dutch Harbour

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Our report for Dutch Harbor 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.