World sea water temperatures

Water temperature in Milwaukee (WI) in May

Is it warm enough to swim in Milwaukee in May? Average water temperature in Milwaukee in May is 45.9°F and therefore is not suitable for comfortable swimming. The warmest water in Milwaukee in May is 59°F, and the coldest is 37.2°F. Average high air temperature in Milwaukee in May is 65°F, and average low temperature is 47°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 May 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 May.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
May 144.8°F46.2°F37.4°F46.2°F
May 244.4°F47.1°F37.2°F47.1°F
May 344.6°F49.6°F37.4°F49.6°F
May 444.6°F49.6°F37.2°F49.6°F
May 545.1°F49.1°F38.7°F49.1°F
May 646.6°F49.5°F39°F49.5°F
May 748.4°F49.5°F39.6°F49.5°F
May 846.6°F50.2°F39°F50.2°F
May 947.8°F50°F39.6°F50°F
May 1047.3°F48.9°F39.9°F48.9°F
May 1147.8°F49.6°F40.5°F49.6°F
May 1248.6°F50.4°F40.1°F50.4°F
May 1348.9°F50.5°F40.6°F50.5°F
May 1446°F49.6°F40.1°F49.6°F
May 1548.2°F49.1°F40.6°F49.6°F
Day 2025 2024 Min Max
May 1648.4°F48.4°F41°F50.5°F
May 1748.4°F51.6°F40.5°F51.6°F
May 1849.3°F51.6°F41°F52.2°F
May 1948°F52°F41.4°F52°F
May 2046.8°F52.5°F40.5°F52.5°F
May 2146.8°F53.2°F41°F53.2°F
May 2246°F52.5°F41.9°F52.5°F
May 2346.8°F52.2°F41.7°F52.2°F
May 2446.6°F53.4°F40.8°F53.4°F
May 2548.4°F53.2°F41.2°F54°F
May 2650.2°F53.2°F41.4°F54.3°F
May 2750.2°F51.4°F41.9°F54.9°F
May 2850.2°F51.4°F42.3°F54.1°F
May 2950.9°F52.9°F42.4°F55.6°F
May 3052.2°F53.2°F42.8°F56.8°F
May 3150.7°F55°F43.2°F59°F
Milwaukee water temp chart in May

Average water temperature in Milwaukee in May over a decade

20162017201820192020
45.9°F44.2°F45.1°F40.5°F45.3°F
20212022202320242025
49.1°F43.5°F47.5°F50.9°F47.7°F

Milwaukee sea state in May

Chart comparing the height of waves in Milwaukee in May 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 May

Weather and climate in Milwaukee in May

This data display average monthly climate indicators in Milwaukee in May 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 temperature65°F
  • Average LOW temperature47°F
  • Average humidity
    69
  • Average rainfall days11 days
  • Average rainfall86mm/3.4''
  • Average daylight15h
  • Average sunshine8.9h
  • Average UV index7

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 May

Where is the warm sea water in May?

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

AvrMinMax
Bradford Beach45.9°F37.2°F59°F
Shorewood45.7°F36.9°F59.2°F
Fox Point45.3°F36.7°F59.2°F
Whitefish Bay45.5°F36.7°F59.5°F
Oak Creek46.4°F38.1°F57°F
Wind Point46°F38.3°F56.1°F
Port Washington43.2°F35.2°F55°F
Racine45.9°F37.6°F56.7°F
Kenosha46.4°F37.6°F56.7°F
Harrington Beach42.8°F35.6°F53.2°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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