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Illinois water temperature in December

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Can you swim in Illinois in winter? In December water temperature throughout Illinois is not yet warm enough for swimming and does not exceed 68°F. Based on average water temperature observations over the past ten years, the warmest water temperature in Illinois in December was 41.5°F (in Calumet Park), and the coldest 40.3°F (in Winnetka). To find out the sea temperature today and in the coming days, go to Current sea temperature in Illinois

Illinois surface temperature in December

Illinois cities and resorts with the values of the average water temperature in December in recent years.
For more detailed information about water temperature, surf forecast, weather and time of sunrise and sunset in any specific area of your interest, just click on a city name. For ease of search, all places are also grouped by the first letter of the name.

 
2024
2023
2022
2021
2020
41.9°F
42.3°F
41.2°F
43.2°F
41.5°F
39°F
42.8°F
40.5°F
44.6°F
39°F
41°F
42.4°F
41°F
42.4°F
40.6°F
36.3°F
38.7°F
37.6°F
38.3°F
37.4°F

Illinois water temperature by month

To find out what the water temperature was in Illinois any day over a period of the last ten years, select the month

Where is the warm sea water in December?

Want to know where the water temperature in December is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Where can you swim in Illinois in December?

Places with the warmest average water temperature in Illinois in December. Also indicated are the maximum and minimum temperatures in December for these locations based on observations over the past 10 years

AvrMinMax
Calumet Park41.5°F32.5°F53.1°F
South Shore Beach41.4°F32.4°F51.4°F
Illinois Beach State Park41.4°F34.3°F47.5°F
Zion41.4°F34.3°F47.5°F
Winthrop Harbor41.4°F34.5°F46.9°F

Illinois photo gallery

  • Lighthouse Beach
  • Montrose Beach pier
  • Montrose Beach pier
  • Rogers Park

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.

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Our report for United States 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.

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