Michigamme Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Michigamme Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Michigamme Reservoir today is 20.2°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 24 | 23.0°C | 25.1°C | |
| AUG 25 | 23.0°C | 25.1°C | |
| AUG 26 | 23.0°C | 25.1°C | |
| AUG 27 | 22.2°C | 25.1°C | |
| AUG 28 | 22.5°C | 25.1°C | |
| AUG 29 | 21.3°C | 25.1°C | |
| AUG 30 | 21.3°C | 25.1°C | |
| AUG 31 | 20.2°C | 25.1°C | |
| SEP 1 | 17.5°C | 20.1°C | |
| SEP 2 | 17.5°C | 19.9°C | |
| SEP 3 | 17.5°C | 19.8°C | |
| SEP 4 | 17.5°C | 19.7°C | |
| SEP 5 | 17.5°C | 19.5°C | |
| SEP 6 | 17.5°C | 19.4°C | |
| SEP 7 | 17.5°C | 19.3°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 | 0°C | 2°C | 4°C |
| February | 0°C | 1°C | 3°C |
| March | 0°C | 2°C | 4°C |
| April | 1°C | 5°C | 10°C |
| May | 7°C | 12°C | 17°C |
| June | 16°C | 19°C | 22°C |
| July | 17°C | 23°C | 29°C |
| August | 20°C | 25°C | 30°C |
| September | 14°C | 18°C | 21°C |
| October | 9°C | 13°C | 17°C |
| November | 4°C | 7°C | 10°C |
| December | 0°C | 3°C | 6°C |
Michigamme Reservoir: Water Temperature by Location
Michigamme Reservoir: Weather Forecast
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Location & Local Information
Lake of Michigamme Reservoir, in Michigan’s Upper Peninsula, tends to have cool water year-round compared with lower‑latitude lakes. Typical surface temperatures in summer commonly range from about 60–75°F (15–24°C) in June through August, with the warmest pockets in shallow bays on hot, calm days. Spring and fall see much cooler conditions, often 40–60°F (4–16°C) as the lake mixes and cools, and by winter the surface approaches freezing near 32°F (0°C) where ice forms. Deeper water remains colder than surface readings, so overall thermal stratification and rapid drops in temperature are possible away from the shoreline.
Swimming is generally permitted because the reservoir offers public shoreline and recreational use, but it carries caveats that affect suitability. Variable water levels, submerged structure, and colder-than-expected temperatures can create hazards; areas near dams, boat channels, and inflows are especially risky. Many people swim from beaches or boats during the warmest weeks, but lifeguards are rare and sudden cold water can hasten fatigue or hypothermia, so caution is advised. Local rules, posted signs, and seasonal closures should be checked before entering the water.