Washington Island water temp

This data the coastal Washington Island 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 water temperature in Washington Island

Water temperature in Washington Island today is 67.3°F. Based on our historical data over a period of ten years, the warmest water in this day in Washington Island was recorded in 2021 and was 70.3°F, and the coldest was recorded in 2019 at 62.2°F. Water temperature in Washington Island is expected to drop to 64.4°F in the next 10 days. September average water temperature in Washington Island is 64.4°F, the minimum temperature is 55.8°F, and the maximum is 71.1°F.

The swimming season in Washington Island lasts from July to August. During those months, Washington Island water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Washington Island in winter reaches 37.6°F, in spring 37.4°F, in summer the average temperature rises to 62.2°F, and in autumn it is 56.1°F.

Washington Island water temperature now

Surf Forecast in Washington Island 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 Washington Island. 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 Washington Island. 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 Washington Island

Washington Island weather forecast

Current temperature and weather

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

0-3 h	3-6 h	6-9 h	9-12 h
58.6°F	59.5°F	57.2°F	54.3°F

12-15 h	15-18 h	18-21 h	21-24 h
56.7°F	57°F	57.2°F	58.3°F

Washington Island water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Washington Island. 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 Washington Island 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 Washington Island

The nearest beaches and cities from Washington Island 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
Rowleys Bay	66.6°F	57.2°F		3' 10"
Sister Bay	66.7°F	57.2°F		2' 3"
Fish Creek	67.6°F	57.2°F		2' 2"
Big Bay de Noc	66.2°F	57.2°F		2' 9"
Egg Harbor	67.8°F	57.2°F		2' 2"
Cave Point	67.6°F	59°F		3' 9"
Garden	66.4°F	57.2°F		4' 0"
Escanaba	64.8°F	55.4°F		2' 4"
Menominee	67.8°F	57.2°F		2' 2"
Sleeping Bear	66.4°F	57.2°F		5' 1"

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Our report for Washington Island 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.