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Water temperature in Winthrop Harbor (IL) in December

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Is it warm enough to swim in Winthrop Harbor in December? Average water temperature in Winthrop Harbor in December is 41.4°F and therefore is not suitable for comfortable swimming. The warmest water in Winthrop Harbor in December is 46.9°F, and the coldest is 34.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Winthrop Harbor

Changes water temperature in Winthrop Harbor in December 2024, 2023

To get an accurate forecast for the water temperature in Winthrop Harbor for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Winthrop Harbor, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of December.

You can choose any other years:

Year 1:   Year 2:


Day 2024 2023 Min Max
December 143.3°F46.4°F39°F46.9°F
December 243°F46.2°F39.7°F46.9°F
December 342.3°F46°F39.9°F46.9°F
December 442.6°F45.9°F40.3°F46.8°F
December 541.2°F45.7°F40.1°F45.9°F
December 640.8°F45.9°F39.2°F46.9°F
December 740.8°F45°F38.8°F46.6°F
December 839.6°F44.6°F38.8°F45.9°F
December 939.7°F45.1°F39.4°F45.1°F
December 1040.3°F44.4°F39°F45.5°F
December 1140.1°F44.1°F37.4°F46°F
December 1240.5°F44.1°F37.2°F46.4°F
December 1339.9°F43.9°F37.4°F45°F
December 1439.9°F43.7°F37.6°F45.3°F
December 1539.9°F44.1°F37°F45.3°F
Day 2024 2023 Min Max
December 1640.5°F43.7°F36.9°F46.2°F
December 1739.7°F43.5°F36.5°F45.7°F
December 1839.7°F43.9°F36.5°F45.1°F
December 1939.9°F43.3°F36.5°F44.6°F
December 2041°F42.8°F36.9°F45°F
December 2139°F42.1°F36.7°F44.8°F
December 2237.8°F41.2°F37.6°F45°F
December 2337.4°F40.5°F37.2°F43.7°F
December 2437.2°F41.5°F36°F43.3°F
December 2536.7°F40.6°F35.6°F44.4°F
December 2636.3°F42.8°F35.6°F43.5°F
December 2736°F42.6°F35.2°F43.2°F
December 2838.7°F42.3°F35.6°F42.3°F
December 2938.7°F42.1°F35.4°F43.7°F
December 3038.3°F42.1°F34.5°F43.2°F
December 3138.5°F41.9°F34.7°F42.8°F
Winthrop Harbor water temp chart in December

Average water temperature in Winthrop Harbor in December over a decade

20152016201720182019
42.4°F41.9°F40.6°F39.7°F39.6°F
20202021202220232024
41.5°F45°F41.9°F43.5°F39.7°F

Winthrop Harbor sea state in December

Chart comparing the height of waves in Winthrop Harbor in December over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Winthrop Harbor in December

Winthrop Harbor water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Water temperature at Lake Michigan in December

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

Temperature in neighboring cities

The nearest locations with the average water temperature in December. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Illinois Beach State Park41.4°F34.3°F47.5°F
Simmons Island Beach41.4°F34.5°F46.9°F
Tower Road Beach40.5°F32.9°F46.2°F
Glencoe40.5°F32.9°F46.2°F
Oak Creek40.3°F33.3°F46°F
Winnetka40.3°F32.5°F46.2°F
Wilmette40.6°F32.5°F46.4°F
Evanston40.8°F32.5°F47.1°F
Rogers Park40.8°F32.5°F47.1°F
Montrose Beach40.6°F32.4°F47.3°F

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Winthrop 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.

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