Nepessing Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Nepessing Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Nepessing Lake today is 19°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 14 | 19.9°C | 22.5°C | |
| SEP 15 | 20.1°C | 22.5°C | |
| SEP 16 | 19.1°C | 22.5°C | |
| SEP 17 | 19.4°C | 22.5°C | |
| SEP 18 | 19.3°C | 22.5°C | |
| SEP 19 | 19.0°C | 22.5°C | |
| SEP 20 | 19.0°C | 22.5°C | |
| SEP 22 | 22.5°C | 19.2°C | |
| SEP 23 | 22.5°C | 19.4°C | |
| SEP 24 | 22.5°C | 19.5°C | |
| SEP 25 | 22.5°C | 19.7°C | |
| SEP 26 | 22.5°C | 19.9°C | |
| SEP 27 | 22.5°C | 20.1°C | |
| SEP 28 | 22.5°C | 20.2°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 | 5°C | 8°C |
| April | 4°C | 9°C | 14°C |
| May | 10°C | 15°C | 20°C |
| June | 17°C | 21°C | 24°C |
| July | 22°C | 25°C | 28°C |
| August | 22°C | 25°C | 28°C |
| September | 18°C | 23°C | 27°C |
| October | 13°C | 17°C | 20°C |
| November | 4°C | 9°C | 13°C |
| December | 0°C | 3°C | 6°C |
Nepessing Lake: Water Temperature by Location
Nepessing Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Nepessing Lake, a small inland lake in Michigan, experiences typical northern temperate seasonal water temperatures. In spring (April–May) surface readings commonly run from about 40–60°F (4–16°C) as the lake thermally recovers from winter. Summer (June–August) brings the warmest conditions, with surface temperatures generally in the 68–80°F range (20–27°C), making shallow areas notably warmer on calm days. During fall (September–November) the water cools again to roughly 50–65°F (10–18°C) as overturn and cooling set in. In winter the lake is near freezing at the surface—around 32–39°F (0–4°C) where ice forms—so open-water swimming becomes uncommon and hazardous.
Swimming at Nepessing Lake is permitted where access and local rules allow, and many people swim there in summer because surface temperatures reach comfortable recreational levels and the lake is freshwater. However, availability of public access, shoreline ownership, water quality conditions, aquatic vegetation and sudden depth changes affect where and how safe swimming is. In spring and fall the water can be uncomfortably cold for prolonged swims, and in winter ice cover makes swimming unsafe except for specialized cold-water activities with proper precautions. Always observe posted signage, check local advisories, and use standard water-safety practices before entering the water.