North Manistique Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in North Manistique Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in North Manistique Lake today is 21.6°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 4 | 21.8°C | 23.0°C | |
| AUG 5 | 21.8°C | 23.0°C | |
| AUG 6 | 22.1°C | 23.0°C | |
| AUG 7 | 21.6°C | 23.0°C | |
| AUG 8 | 21.7°C | 23.0°C | |
| AUG 9 | 21.4°C | 23.0°C | |
| AUG 10 | 21.5°C | 23.0°C | |
| AUG 11 | 21.5°C | 23.0°C | |
| AUG 12 | 23.0°C | 21.7°C | |
| AUG 13 | 23.0°C | 21.7°C | |
| AUG 14 | 23.0°C | 21.8°C | |
| AUG 15 | 23.0°C | 21.9°C | |
| AUG 16 | 23.0°C | 22.0°C | |
| AUG 17 | 23.0°C | 22.0°C | |
| AUG 18 | 23.0°C | 22.1°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 | 6°C |
| April | 4°C | 8°C | 13°C |
| May | 6°C | 15°C | 23°C |
| June | 12°C | 17°C | 22°C |
| July | 17°C | 22°C | 27°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 | 7°C |
North Manistique Lake: Water Temperature by Location
North Manistique Lake: Weather Forecast
August 12
August 13
August 14
August 15
August 16
Location & Local Information
North Manistique Lake’s surface temperatures follow the typical seasonal pattern of inland Upper Peninsula lakes. After ice-out in spring, daytime surface readings are often in the mid‑40s to mid‑50s Fahrenheit (about 7 to 13 °C). By late spring and early summer the lake commonly warms into the low 60s to upper 60s F (around 16 to 20 °C). Peak summer highs in July and August generally reach the upper 60s to mid‑70s F (roughly 20 to 24 °C), and on warm years shallow bays can climb into the mid‑70s to high‑70s F (about 24 to 26 °C). Come autumn the surface cools back into the 50s F (10 to 15 °C) and by winter the lake approaches freezing conditions, with ice cover forming at or below 32 °F (0 °C).
Swimming is commonly allowed on North Manistique Lake and the shoreline is used for recreational bathing because it is a public natural lake with boat access and private beach areas. However, conditions vary by season and location: colder spring and fall temperatures increase risk of cold shock or hypothermia, and summer water quality can be affected locally by algae or bacterial advisories, shoreline vegetation, or boat traffic. There are typically no municipal lifeguards, so swimmers should check current local advisories, enter gradually in cool water, and follow basic safety practices.