Lake Michigan — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Michigan, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Michigan today is 24°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| AUG 4 | 24.6°C | 22.0°C | |
| AUG 5 | 24.6°C | 22.0°C | |
| AUG 6 | 24.7°C | 22.0°C | |
| AUG 7 | 23.6°C | 22.0°C | |
| AUG 8 | 23.8°C | 22.0°C | |
| AUG 9 | 23.9°C | 22.0°C | |
| AUG 10 | 24.0°C | 22.0°C | |
| AUG 11 | 24.0°C | 22.0°C | |
| AUG 12 | 22.0°C | 23.9°C | |
| AUG 13 | 22.0°C | 23.8°C | |
| AUG 14 | 22.0°C | 23.7°C | |
| AUG 15 | 22.0°C | 23.6°C | |
| AUG 16 | 22.0°C | 23.5°C | |
| AUG 17 | 22.0°C | 23.4°C | |
| AUG 18 | 22.0°C | 23.3°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 1°C | 4°C | 6°C |
| February | -2°C | 2°C | 5°C |
| March | -2°C | 2°C | 6°C |
| April | 1°C | 7°C | 13°C |
| May | 2°C | 9°C | 15°C |
| June | 9°C | 15°C | 22°C |
| July | 13°C | 20°C | 28°C |
| August | 19°C | 22°C | 25°C |
| September | 14°C | 19°C | 24°C |
| October | 7°C | 14°C | 20°C |
| November | 4°C | 10°C | 15°C |
| December | 2°C | 5°C | 8°C |
Lake Michigan: Water Temperature by Location
🇺🇸 United States > Illinois
- Chicago27.2°C
- Evanston27.6°C
- Jackson Park25.9°C
- Lake Bluff26.8°C
- Oakwood Beach25.8°C
- South Shore Beach25.9°C
- Waukegan27.6°C
🇺🇸 United States > Indiana
🇺🇸 United States > Michigan
- Bridgman25.8°C
- Escanaba23.9°C
- Frankfort22.9°C
- Gladstone23.6°C
- Greilickville25.7°C
- Grosse Ile26.1°C
- Harbor Springs19.2°C
- Leland25.1°C
- Ludington23.5°C
- Manistee21.5°C
- Manistique21.9°C
- Menominee23.6°C
- Muskegon26.8°C
- New Buffalo26.1°C
- Saugatuck25.4°C
- South Haven26.0°C
- St Joseph26.4°C
- Traverse City25.7°C
🇺🇸 United States > Wisconsin
Lake Michigan: Weather Forecast
August 12
August 13
August 14
August 15
Location & Local Information
Max. length 307 mi (494 km)
Max. width 118 mi (190 km)
Min. width 91 mi (146 km)
Surface area 22,404 sq mi (58,030 km2)
Average depth 279 ft (85 m)
Max. depth 923 ft (281 m)
Lake Michigan, one of North America’s Great Lakes, is a vast freshwater expanse offering countless opportunities for swimming, water sports, and relaxation along its shores. Spanning multiple states, including Michigan, Wisconsin, Indiana, and Illinois, the lake is famous for its sandy beaches and vibrant coastal towns, drawing millions of visitors each year during the warmer months.
Water temperatures in Lake Michigan vary significantly depending on the season and location. In summer, surface temperatures along popular beaches like those near Chicago or Traverse City can reach a comfortable 68°F to 75°F (20°C to 24°C) by July and August, making it ideal for swimming. However, the lake’s immense size and depth mean that temperatures can drop quickly as you move further offshore or venture into deeper waters. The spring and fall months are cooler, with water temperatures ranging from the 50s to low 60s°F (10°C to 16°C), while winter sees much of the lake’s surface frozen or near freezing.
Swimming in Lake Michigan is both enjoyable and accessible, with many public beaches offering amenities like lifeguards, picnic areas, and changing facilities. Popular spots include Indiana Dunes National Park and Sleeping Bear Dunes, known for their natural beauty and safe swimming zones. While the water is generally calm during summer, swimmers should always pay attention to local safety warnings about rip currents, which can occasionally occur. Whether you’re wading in the shallows or diving into the deeper blue, Lake Michigan provides a quintessential Great Lakes experience.