Lake Winnebago water temp

This data the coastal Lake Winnebago 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 Lake Winnebago

Water temperature in Lake Winnebago today is 67.1°F. Based on our historical data over a period of ten years, the warmest water in this day in Lake Winnebago was recorded in 2012 and was 73.2°F, and the coldest was recorded in 2017 at 66.6°F. Water temperature in Lake Winnebago is expected to rise to 68°F in the next 10 days. September average water temperature in Lake Winnebago is 68.5°F, the minimum temperature is 60.3°F, and the maximum is 75.2°F.

The swimming season in Lake Winnebago lasts from June to September. During those months, Lake Winnebago water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Lake Winnebago in winter reaches 33.4°F, in spring 44.8°F, in summer the average temperature rises to 73.2°F, and in autumn it is 56.1°F.

Lake Winnebago water temperature now

Surf Forecast in Lake Winnebago 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 Lake Winnebago. 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 Lake Winnebago. Data in table shown for September 8, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Lake Winnebago

Lake Winnebago weather forecast

Current temperature and weather

Data in a table show Lake Winnebago temperature today (September 8, 2025). For more information and forecast for a few days, go to the weather forecast Lake Winnebago.

0-3 h	3-6 h	6-9 h	9-12 h
54.7°F	53.4°F	48.6°F	56.5°F

12-15 h	15-18 h	18-21 h	21-24 h
63.9°F	65.1°F	64.2°F	56.7°F

Lake Winnebago water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Lake Winnebago. 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 Lake Winnebago 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 Lake Winnebago

The nearest beaches and cities from Lake Winnebago 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
Oshkosh	66.9°F	64.4°F		1' 0"
Sheboygan	63.1°F	66.2°F		1' 2"
Kohler Andrae	63.5°F	66.2°F		1' 2"
Cedar Grove	63.3°F	68°F		1' 1"
Two Rivers	61.5°F	66.2°F		1' 4"
Harrington Beach	63.7°F	68°F		1' 0"
Suamico	63.9°F	66.2°F		0' 4"
Port Washington	64.9°F	68°F		1' 1"
Kewaunee	62.2°F	64.4°F		1' 0"
Whitefish Bay	66.2°F	69.8°F		1' 0"

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Our report for Lake Winnebago 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.