Manistique Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Manistique Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Manistique Lake today is 18.4°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 6 | 16.8°C | 17.0°C | |
| JUN 7 | 17.3°C | 17.0°C | |
| JUN 8 | 17.5°C | 17.0°C | |
| JUN 10 | 17.5°C | 17.0°C | |
| JUN 11 | 17.6°C | 17.0°C | |
| JUN 12 | 18.5°C | 17.0°C | |
| JUN 13 | 18.4°C | 17.0°C | |
| JUN 14 | 17.0°C | 18.3°C | |
| JUN 15 | 17.0°C | 18.3°C | |
| JUN 16 | 17.0°C | 18.2°C | |
| JUN 17 | 17.0°C | 18.1°C | |
| JUN 18 | 17.0°C | 18.1°C | |
| JUN 19 | 17.0°C | 18.0°C | |
| JUN 20 | 17.0°C | 17.9°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 | 3°C | 5°C | 7°C |
| February | 3°C | 6°C | 8°C |
| March | 0°C | 3°C | 7°C |
| April | 4°C | 8°C | 12°C |
| May | 6°C | 15°C | 23°C |
| June | 12°C | 17°C | 22°C |
| July | 17°C | 21°C | 25°C |
| August | 19°C | 23°C | 27°C |
| September | 12°C | 16°C | 20°C |
| October | 11°C | 15°C | 18°C |
| November | 0°C | 6°C | 11°C |
| December | 0°C | 3°C | 6°C |
Manistique Lake: Water Temperature by Location
Manistique Lake: Weather Forecast
June 14
June 15
June 16
June 17
June 18
Location & Local Information
Manistique Lake, located in Michigan’s Upper Peninsula, undergoes pronounced seasonal shifts in surface temperature. In winter the lake typically approaches freezing, with surface temperatures near 32°F (0°C) and periods of ice cover from late fall into early spring. During spring (April–May) the water usually warms from roughly 35–55°F (2–13°C) as ice melts and runoff continues to cool the surface. Summer brings the warmest conditions: June through August surface readings commonly reach about 60–75°F (16–24°C) on sunny afternoons, though cooler pockets and deeper water remain colder. In autumn the lake cools back down, with surface temperatures generally falling through the 50–40°F range (10–4°C) as air temperatures drop.
Swimming is permitted and regularly practiced during the warmer months when surface temperatures are most comfortable. Public access points and shoreline areas are available for recreation, but conditions vary and local rules or advisories can apply, so visitors should check current guidance before entering the water. Because Manistique Lake can be chilly outside peak summer and is ice-covered in winter, swimmers should be cautious about cold-water shock and hypothermia, avoid swimming alone, and use life jackets as appropriate. Lifeguards are not always present at informal access sites, so personal safety measures are important.