Mullett Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Mullett Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Mullett Lake today is 18.8°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 |
|---|---|---|---|
| AUG 4 | 23.6°C | 23.4°C | |
| AUG 5 | 23.6°C | 23.4°C | |
| AUG 6 | 23.3°C | 23.4°C | |
| AUG 7 | 19.6°C | 23.4°C | |
| AUG 8 | 18.7°C | 23.4°C | |
| AUG 9 | 18.9°C | 23.4°C | |
| AUG 10 | 18.8°C | 23.4°C | |
| AUG 11 | 18.8°C | 23.4°C | |
| AUG 12 | 23.4°C | 19.0°C | |
| AUG 13 | 23.4°C | 19.3°C | |
| AUG 14 | 23.4°C | 19.5°C | |
| AUG 15 | 23.4°C | 19.7°C | |
| AUG 16 | 23.4°C | 20.0°C | |
| AUG 17 | 23.4°C | 20.2°C | |
| AUG 18 | 23.4°C | 20.4°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 | 5°C |
| February | 0°C | 2°C | 5°C |
| March | 1°C | 3°C | 6°C |
| April | 1°C | 6°C | 10°C |
| May | 3°C | 10°C | 17°C |
| June | 11°C | 18°C | 24°C |
| July | 17°C | 22°C | 27°C |
| August | 18°C | 23°C | 28°C |
| September | 15°C | 21°C | 27°C |
| October | 9°C | 14°C | 19°C |
| November | 3°C | 7°C | 11°C |
| December | 0°C | 3°C | 6°C |
Mullett Lake: Water Temperature by Location
Mullett Lake: Weather Forecast
August 12
August 13
August 14
August 15
August 16
Location & Local Information
Mullett Lake, in Michigan’s northern Lower Peninsula, experiences a wide range of surface water temperatures through the year. In spring the lake is cold, often around the low 40s to low 60s °F (about 4–16 °C) as ice melts and full warming has not yet occurred. By summer, surface temperatures commonly rise into the mid-60s to high 70s °F (roughly 18–26 °C) in warm stretches, with shallower bays and sunlit shorelines warming faster than deeper central basins. In fall the surface cools back into the 40s and 50s °F (around 7–16 °C) as air temperatures drop, and winter brings near-freezing conditions around 32–34 °F (0–1 °C) with ice cover possible. These ranges vary with weather, wind, time of day and depth; deeper water remains noticeably colder than surface readings.
Swimming at Mullett Lake is commonly done in the warmer months and is generally allowed where public access points, parks and private beaches exist. Most people find conditions comfortable for swimming when surface temperatures are in the upper 60s–70s °F (20–25 °C). Caution is advised outside of summer: cold water can cause shock and rapid loss of body heat, and winter ice makes swimming unsafe except under specialized, supervised conditions. Swimmers should also be mindful of boat traffic, changing conditions, and any local advisories about water quality or safety.