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 18.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 |
|---|---|---|---|
| JUN 3 | 13.3°C | 13.7°C | |
| JUN 4 | 16.7°C | 13.7°C | |
| JUN 5 | 17.0°C | 13.7°C | |
| JUN 6 | 17.0°C | 13.7°C | |
| JUN 7 | 18.3°C | 13.7°C | |
| JUN 8 | 18.3°C | 13.7°C | |
| JUN 10 | 18.6°C | 13.7°C | |
| JUN 11 | 13.7°C | 18.4°C | |
| JUN 12 | 13.7°C | 18.1°C | |
| JUN 13 | 13.7°C | 17.9°C | |
| JUN 14 | 13.7°C | 17.6°C | |
| JUN 15 | 13.7°C | 17.4°C | |
| JUN 16 | 13.7°C | 17.1°C | |
| JUN 17 | 13.7°C | 16.9°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 | 14°C | 19°C |
| July | 13°C | 18°C | 23°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
- Chicago22.4°C
- Evanston22.7°C
- Jackson Park21.0°C
- Lake Bluff21.0°C
- Oakwood Beach21.0°C
- South Shore Beach21.0°C
- Waukegan21.7°C
🇺🇸 United States > Indiana
🇺🇸 United States > Michigan
- Bridgman21.0°C
- Escanaba21.3°C
- Frankfort18.9°C
- Gladstone20.7°C
- Greilickville20.0°C
- Grosse Ile21.0°C
- Harbor Springs19.6°C
- Leland19.4°C
- Ludington21.2°C
- Manistee19.5°C
- Manistique19.2°C
- Menominee21.0°C
- Muskegon20.9°C
- New Buffalo21.0°C
- Saugatuck21.0°C
- South Haven21.0°C
- St Joseph21.0°C
- Traverse City20.0°C
🇺🇸 United States > Wisconsin
Lake Michigan: Weather Forecast
June 9
June 10
June 11
June 12
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.