Lake Cadillac — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Cadillac, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Cadillac today is 17.9°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 12 | 19.1°C | 22.0°C | |
| SEP 13 | 18.1°C | 22.0°C | |
| SEP 14 | 18.5°C | 22.0°C | |
| SEP 15 | 18.5°C | 22.0°C | |
| SEP 16 | 18.0°C | 22.0°C | |
| SEP 17 | 17.9°C | 22.0°C | |
| SEP 18 | 17.9°C | 22.0°C | |
| SEP 19 | 17.8°C | 22.0°C | |
| SEP 20 | 22.0°C | 18.1°C | |
| SEP 21 | 22.0°C | 18.3°C | |
| SEP 22 | 22.0°C | 18.5°C | |
| SEP 23 | 22.0°C | 18.7°C | |
| SEP 24 | 22.0°C | 18.9°C | |
| SEP 25 | 22.0°C | 19.1°C | |
| SEP 26 | 22.0°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 | 1°C | 4°C |
| February | 0°C | 2°C | 5°C |
| March | 1°C | 3°C | 6°C |
| April | 4°C | 7°C | 11°C |
| May | 7°C | 12°C | 17°C |
| June | 13°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 | 2°C | 7°C | 11°C |
| December | 0°C | 3°C | 5°C |
Lake Cadillac: Water Temperature by Location
Lake Cadillac: Weather Forecast
September 20
September 21
September 22
September 23
September 24
Location & Local Information
Lake Cadillac experiences pronounced seasonal shifts in surface water temperature typical of inland Michigan lakes. During winter months temperatures are at or just above freezing, around 32°F (0°C), and the lake is often ice-covered. In spring the surface warms from roughly 35–60°F (2–16°C) as ice melts and the water mixes. Summer brings the warmest conditions, with typical surface temperatures in the range of about 68–78°F (20–26°C) and occasional warm spells pushing low‑80s°F (27–28°C). By autumn the lake cools again, with early fall surface temperatures often between 50–65°F (10–18°C) before dropping toward near‑freezing by late fall.
Swimming in Lake Cadillac is generally permitted and commonly practiced during the warmer months in designated public beach areas and other recreational spots, provided water quality and safety conditions are met. Local authorities or park managers monitor for bacterial contamination and post advisories if necessary, so swimmers should heed signage and any posted rules; many spots are unsupervised, so personal caution is important. Cold temperatures outside summer increase risk of cold shock and hypothermia, so winter or early‑spring swimming is not recommended except in organized, well‑prepared events. Overall, summer offers the safest and most comfortable opportunity for recreational swimming.