Lake Margrethe — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Margrethe, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Margrethe today is 7.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 41°F (5°C) to 47°F (8°C). This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold. 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 |
|---|---|---|---|
| OCT 26 | 9.7°C | 14.5°C | |
| OCT 27 | 9.9°C | 14.5°C | |
| OCT 28 | 10.0°C | 14.5°C | |
| OCT 29 | 10.5°C | 14.5°C | |
| OCT 30 | 10.4°C | 14.5°C | |
| OCT 31 | 10.2°C | 14.5°C | |
| NOV 1 | 7.6°C | 7.2°C | |
| NOV 2 | 7.2°C | 7.2°C | |
| NOV 3 | 7.2°C | 7.6°C | |
| NOV 4 | 7.2°C | 7.6°C | |
| NOV 5 | 7.2°C | 7.5°C | |
| NOV 6 | 7.2°C | 7.5°C | |
| NOV 7 | 7.2°C | 7.5°C | |
| NOV 8 | 7.2°C | 7.5°C | |
| NOV 9 | 7.2°C | 7.5°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 | 3°C | 6°C |
| February | 0°C | 2°C | 5°C |
| March | 1°C | 4°C | 7°C |
| April | 2°C | 6°C | 11°C |
| May | 7°C | 13°C | 19°C |
| June | 14°C | 19°C | 24°C |
| July | 19°C | 23°C | 27°C |
| August | 20°C | 24°C | 28°C |
| September | 17°C | 22°C | 27°C |
| October | 10°C | 15°C | 19°C |
| November | 3°C | 7°C | 11°C |
| December | 0°C | 3°C | 7°C |
Lake Margrethe: Water Temperature by Location
Lake Margrethe: Weather Forecast
November 3
November 4
November 5
November 6
November 7
Location & Local Information
Lake Margrethe’s water temperatures follow the seasonal pattern typical of northern Michigan inland lakes. In winter the surface is close to freezing, around 32°F (0°C), and the lake commonly freezes over. During spring, as ice melts and air temperatures rise, surface readings usually climb into the 40s to mid‑50s°F (4–13°C). By summer, surface temperatures most often reach the upper 60s to mid‑70s°F (20–24°C), and during warm stretches can approach the upper 70s°F (25–26°C) at shallow, sheltered spots; deeper water remains noticeably cooler. In autumn the lake cools again through the 50s to 40s°F (10–4°C) before refreezing. Exact figures vary year to year and by depth, wind exposure and location around the lake.
Swimming is commonly practiced at Lake Margrethe in the warmer months when surface temperatures are comfortable for recreational use, and public accesses and private shorelines provide places to enter the water. Local rules and signage govern designated swim areas, and water quality, weather, underwater hazards and boat traffic should be considered before entering. Winter swimming is uncommon because of ice cover, except for organized polar‑plunge events; in any season, wearing a life jacket and following safety guidance is recommended because conditions can change quickly.