World sea water temperatures

Water temperature in Milwaukee (WI) in January

Is it warm enough to swim in Milwaukee in January? Average water temperature in Milwaukee in January is 36.5°F and therefore is not suitable for comfortable swimming. The warmest water in Milwaukee in January is 41.7°F, and the coldest is 31.3°F. Average high air temperature in Milwaukee in January is 29°F, and average low temperature is 16°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Milwaukee

Changes water temperature in Milwaukee in January 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
January 139.4°F41.4°F34.5°F41.7°F
January 239.4°F39.6°F35.1°F40.6°F
January 340.1°F39.7°F34.5°F40.3°F
January 438.8°F39.7°F33.1°F41.2°F
January 538.5°F39.7°F33.1°F41.7°F
January 638.3°F39.6°F33.1°F39.6°F
January 738.7°F38.7°F33.3°F39.4°F
January 838.7°F37.8°F32.9°F39.2°F
January 938.3°F37.8°F33.1°F39.4°F
January 1037.9°F37.8°F34.7°F39.4°F
January 1137.6°F38.1°F32.5°F39.6°F
January 1237.6°F38.1°F34.2°F39.7°F
January 1337.2°F37°F34°F38.5°F
January 1437°F36.5°F34°F38.1°F
January 1536.5°F36.3°F33.1°F38.3°F
Day 2025 2024 Min Max
January 1636.9°F36.3°F33.3°F38.1°F
January 1736.5°F36.3°F33.8°F40.1°F
January 1837°F36.3°F32.4°F39.9°F
January 1936.5°F36.3°F33.8°F39.4°F
January 2036.9°F35.6°F33.8°F38.8°F
January 2136.5°F35.6°F33.3°F38.8°F
January 2235.8°F35.6°F33.3°F38.7°F
January 2335.1°F34.7°F32.2°F37°F
January 2435.1°F34.5°F32.2°F37°F
January 2534.9°F34.2°F31.6°F36.9°F
January 2635.4°F34.3°F31.8°F36.9°F
January 2735.8°F33.6°F31.8°F40.3°F
January 2836°F33.4°F31.3°F39.2°F
January 2936.3°F35.2°F31.3°F37.8°F
January 3036.5°F35.4°F31.5°F37.8°F
January 3136.7°F34.5°F31.6°F38.7°F
Milwaukee water temp chart in January

Average water temperature in Milwaukee in January over a decade

20162017201820192020
36.1°F36.7°F34.3°F37.2°F36.7°F
20212022202320242025
37.6°F37.8°F37.2°F36.7°F37.2°F

Milwaukee sea state in January

Chart comparing the height of waves in Milwaukee in January 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 Milwaukee in January

Weather and climate in Milwaukee in January

This data display average monthly climate indicators in Milwaukee in January based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature29°F
  • Average LOW temperature16°F
  • Average humidity
    72
  • Average rainfall days11 days
  • Average rainfall46mm/1.8''
  • Average daylight9h
  • Average sunshine4.5h
  • Average UV index1

Milwaukee water temperature during other months:

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

Michigan Lake water temperatures in January

Where is the warm sea water in January?

Want to know where the water temperature in January 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 January. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Bradford Beach36.5°F31.3°F41.7°F
Shorewood36.9°F31.3°F41.9°F
Fox Point37°F31.3°F42.1°F
Whitefish Bay36.9°F31.1°F41.9°F
Oak Creek36.1°F31.1°F41.5°F
Wind Point36.3°F31.1°F41.7°F
Port Washington37.6°F31.3°F42.1°F
Racine36.5°F31.5°F42.1°F
Kenosha36.5°F31.5°F42.3°F
Harrington Beach37.6°F31.5°F42.1°F

Milwaukee photo gallery

  • Green Flash seen from Bradford Beach
  • North of Oak Creek Power Plant (zoom to see it's smoke stacks)

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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 Milwaukee 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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