Gun Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Gun Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Gun Lake today is 19.7°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 |
|---|---|---|---|
| SEP 13 | 20.4°C | 23.0°C | |
| SEP 14 | 21.0°C | 23.0°C | |
| SEP 15 | 20.8°C | 23.0°C | |
| SEP 16 | 20.0°C | 23.0°C | |
| SEP 17 | 20.2°C | 23.0°C | |
| SEP 18 | 20.1°C | 23.0°C | |
| SEP 19 | 20.2°C | 23.0°C | |
| SEP 20 | 20.1°C | 23.0°C | |
| SEP 21 | 23.0°C | 19.9°C | |
| SEP 22 | 23.0°C | 20.0°C | |
| SEP 23 | 23.0°C | 20.2°C | |
| SEP 24 | 23.0°C | 20.4°C | |
| SEP 25 | 23.0°C | 20.5°C | |
| SEP 26 | 23.0°C | 20.7°C | |
| SEP 27 | 23.0°C | 20.9°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 | 0°C | 2°C | 4°C |
| February | 0°C | 4°C | 6°C |
| March | 0°C | 5°C | 9°C |
| April | 5°C | 10°C | 15°C |
| May | 12°C | 16°C | 19°C |
| June | 16°C | 20°C | 24°C |
| July | 20°C | 25°C | 29°C |
| August | 23°C | 26°C | 28°C |
| September | 18°C | 23°C | 28°C |
| October | 11°C | 16°C | 21°C |
| November | 5°C | 9°C | 12°C |
| December | 0°C | 3°C | 7°C |
Gun Lake: Water Temperature by Location
Gun Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Gun Lake typically follows the seasonal pattern of inland Michigan lakes. In winter the surface usually sits at or just above freezing, roughly 32–40°F (0–4°C), and the lake commonly freezes over for a period. Spring brings steady warming with surface temperatures often rising into the 40s and 50s °F (4–15°C) as ice melts and runoff cools shallow areas. By mid to late summer the warmest surface readings are commonly in the upper 60s to mid-70s °F (20–24°C), and on hot, calm days shallow bays can briefly reach around 80°F (27°C). Autumn sees a rapid decline back into the 50s °F (10–15°C) before the lake returns to winter cold.
Swimming in Gun Lake is generally allowed and is a regular recreational activity because many shorelines and public access points provide places to enter the water. Most people swim during the summer months when surface temperatures are comfortable; however, swimmers should heed posted advisories and respect private-property boundaries. Water-quality issues such as localized blue-green algae blooms can occasionally prompt temporary warnings, and cold water in spring or fall increases hypothermia risk, so checking current conditions and following lifeguard or local guidance is advisable.