Monroe Harbor water temp

This data the coastal Monroe Harbor 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 Monroe Harbor

Water temperature in Monroe Harbor today is 68.7°F. Based on our historical data over a period of ten years, the warmest water in this day in Monroe Harbor was recorded in 2017 and was 70.5°F, and the coldest was recorded in 2012 at 63.5°F. Water temperature in Monroe Harbor is expected to drop to 63°F in the next 10 days. September average water temperature in Monroe Harbor is 69.1°F, the minimum temperature is 62.4°F, and the maximum is 75.2°F.

The swimming season in Monroe Harbor lasts from July to September. During those months, Monroe Harbor water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Monroe Harbor in winter reaches 36.7°F, in spring 43.3°F, in summer the average temperature rises to 68.9°F, and in autumn it is 59.2°F.

Monroe Harbor water temperature now

Surf Forecast in Monroe 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 Monroe 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 Monroe Harbor. Data in table shown for September 26, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Monroe Harbor

Monroe Harbor weather forecast

Current temperature and weather

Data in a table show Monroe Harbor temperature today (September 26, 2025). For more information and forecast for a few days, go to the weather forecast Monroe Harbor.

0-3 h	3-6 h	6-9 h	9-12 h
58.6°F	56.7°F	55.9°F	64.4°F

12-15 h	15-18 h	18-21 h	21-24 h
82°F	84°F	78.8°F	73.4°F

Monroe Harbor water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Monroe 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 Monroe 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 Monroe Harbor

The nearest beaches and cities from Monroe 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
Oak Street Beach	67.6°F	84.2°F		0' 7"
North Avenue Beach	67.6°F	84.2°F		0' 7"
Montrose Beach	61.2°F	84.2°F		0' 7"
Foster Beach	61.2°F	84.2°F		0' 7"
South Shore Beach	69.4°F	78.8°F		0' 7"
Calumet Park	66.7°F	78.8°F		0' 7"
Hammond	66.6°F	78.8°F		0' 7"
Wilmette	66.2°F	78.8°F		0' 7"
Winnetka	67.1°F	78.8°F		0' 7"
Gary	67.1°F	78.8°F		0' 7"

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Our report for Monroe 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.