Indiana Dunes water temp

This data the coastal Indiana Dunes 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 Indiana Dunes

Water temperature in Indiana Dunes today is 69.1°F. Based on our historical data over a period of ten years, the warmest water in this day in Indiana Dunes was recorded in 2018 and was 74.8°F, and the coldest was recorded in 2019 at 66.9°F. Water temperature in Indiana Dunes is expected to drop to 68.9°F in the next 10 days. September average water temperature in Indiana Dunes is 69.3°F, the minimum temperature is 62.4°F, and the maximum is 74.8°F.

The swimming season in Indiana Dunes lasts from July to September. During those months, Indiana Dunes water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Indiana Dunes in winter reaches 37.6°F, in spring 43.7°F, in summer the average temperature rises to 70°F, and in autumn it is 59.7°F.

Indiana Dunes water temperature now

Surf Forecast in Indiana Dunes 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 Indiana Dunes. 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 Indiana Dunes. Data in table shown for September 5, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Indiana Dunes

Indiana Dunes weather forecast

Current temperature and weather

Data in a table show Indiana Dunes temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Indiana Dunes.

0-3 h	3-6 h	6-9 h	9-12 h
54°F	54.9°F	59.2°F	62.1°F

12-15 h	15-18 h	18-21 h	21-24 h
65.3°F	65.8°F	68.7°F	61.3°F

Indiana Dunes water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Indiana Dunes. 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 Indiana Dunes 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 Indiana Dunes

Water temperature in Lake Michigan

The nearest beaches and cities from Indiana Dunes 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
Porter Beach	69.1°F	66.2°F		2' 2"
Beverly Shores	69.3°F	64.4°F		2' 3"
Chesterton	69.3°F	66.2°F		2' 2"
Dune Acres	69.3°F	66.2°F		2' 2"
Burns Harbor	69.6°F	66.2°F		2' 0"
Ogden Dunes	70.2°F	66.2°F		2' 0"
Long Beach	69.6°F	64.4°F		2' 3"
Washington Park Beach	69.6°F	64.4°F		2' 3"
West Beach	70.5°F	66.2°F		2' 0"
Portage	70.5°F	66.2°F		2' 0"

If you have interesting photos of this place, you can upload them here. Photos will be available to all users after verification by the moderator.

Indiana Dunes State Park, Indiana Dunes National Park

Get widget or API for your website

Our report for Indiana Dunes 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.