World sea water temperatures

Water temperature in Milwaukee (WI) in April

Is it warm enough to swim in Milwaukee in April? Average water temperature in Milwaukee in April is 39°F and therefore is not suitable for comfortable swimming. The warmest water in Milwaukee in April is 45.7°F, and the coldest is 33.3°F. Average high air temperature in Milwaukee in April is 54°F, and average low temperature is 37°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 April 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 April.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
April 138.8°F37.9°F34.2°F40.3°F
April 238.3°F37.8°F33.3°F40.8°F
April 339.6°F37.6°F33.3°F40.3°F
April 438.3°F38.8°F33.3°F40.5°F
April 538.3°F39.2°F34°F41.2°F
April 639.2°F39.4°F34°F41°F
April 739.2°F39°F33.8°F41.7°F
April 839.2°F40.1°F35.6°F42.1°F
April 939.4°F39.9°F35.6°F41.4°F
April 1039°F40.8°F35.4°F41°F
April 1139.2°F40.3°F35.4°F41.7°F
April 1238.8°F41.2°F35.8°F41.9°F
April 1340.1°F41.5°F36.3°F42.3°F
April 1441°F43.7°F35.8°F43.7°F
April 1541°F43.7°F35.2°F43.7°F
Day 2025 2024 Min Max
April 1641°F44.1°F35.6°F44.1°F
April 1741°F40.8°F35.8°F42.3°F
April 1841.4°F43.2°F35.8°F43.2°F
April 1943.5°F44.2°F36°F44.2°F
April 2042.3°F43.3°F35.6°F43.3°F
April 2143.3°F43.5°F35.4°F43.5°F
April 2243°F44.1°F34.9°F44.1°F
April 2342.8°F44.8°F36.7°F44.8°F
April 2442.3°F43.3°F37.6°F43.7°F
April 2541.9°F42.1°F37.9°F43.7°F
April 2643°F43.3°F37.2°F43.9°F
April 2743.2°F41.5°F36.7°F43.7°F
April 2844.6°F42.6°F36.9°F44.6°F
April 2945.7°F44.2°F37.6°F45.7°F
April 3045.5°F45.7°F37°F45.7°F
Milwaukee water temp chart in April

Average water temperature in Milwaukee in April over a decade

20162017201820192020
39°F38.7°F36.7°F38.3°F39.2°F
20212022202320242025
41.7°F37.8°F40.6°F41.7°F41.2°F

Milwaukee sea state in April

Chart comparing the height of waves in Milwaukee in April 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 April

Weather and climate in Milwaukee in April

This data display average monthly climate indicators in Milwaukee in April 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 temperature54°F
  • Average LOW temperature37°F
  • Average humidity
    69
  • Average rainfall days12 days
  • Average rainfall91mm/3.6''
  • Average daylight13h
  • Average sunshine7.1h
  • Average UV index5

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 April

Where is the warm sea water in April?

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

AvrMinMax
Bradford Beach39°F33.3°F45.7°F
Shorewood38.8°F33.3°F45.5°F
Fox Point38.7°F33.1°F45°F
Whitefish Bay38.8°F33.1°F45.9°F
Oak Creek39.6°F33.4°F46.2°F
Wind Point39.4°F33.4°F45.5°F
Port Washington37.8°F32.4°F43.5°F
Racine39.2°F33.1°F46.2°F
Kenosha39.6°F33.1°F47.7°F
Harrington Beach37.6°F32.5°F43.7°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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