Little Chapman Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Little Chapman Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Little Chapman Lake today is 20.7°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 |
|---|---|---|---|
| SEP 14 | 22.8°C | 24.0°C | |
| SEP 15 | 23.6°C | 24.0°C | |
| SEP 16 | 21.7°C | 24.0°C | |
| SEP 17 | 21.0°C | 24.0°C | |
| SEP 18 | 21.6°C | 24.0°C | |
| SEP 19 | 21.6°C | 24.0°C | |
| SEP 20 | 20.5°C | 24.0°C | |
| SEP 22 | 24.0°C | 20.9°C | |
| SEP 23 | 24.0°C | 21.0°C | |
| SEP 24 | 24.0°C | 21.2°C | |
| SEP 25 | 24.0°C | 21.4°C | |
| SEP 26 | 24.0°C | 21.5°C | |
| SEP 27 | 24.0°C | 21.7°C | |
| SEP 28 | 24.0°C | 21.9°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 | 1°C | 11°C | 21°C |
| February | 1°C | 12°C | 22°C |
| March | 2°C | 13°C | 23°C |
| April | 7°C | 16°C | 24°C |
| May | 11°C | 18°C | 25°C |
| June | 18°C | 22°C | 26°C |
| July | 22°C | 27°C | 32°C |
| August | 24°C | 27°C | 30°C |
| September | 21°C | 24°C | 27°C |
| October | 16°C | 18°C | 21°C |
| November | 6°C | 13°C | 20°C |
| December | 2°C | 7°C | 12°C |
Little Chapman Lake: Water Temperature by Location
Little Chapman Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Little Chapman Lake in Indiana typically follows the seasonal pattern of small inland Midwestern lakes, with surface water temperatures that rise and fall through the year. In winter the lake can approach freezing, often ranging from about 32–40°F (0–4°C) under ice or near-ice conditions. Spring sees a steady warm-up, roughly 40–60°F (4–15°C) as the water mixes and the surface warms. Summer surface temperatures commonly reach the warmest values, often around 70–80°F (21–27°C) on sunny days, although deeper zones may remain cooler. In autumn the surface cools again, generally falling to about 50–65°F (10–18°C) before the onset of winter stratification and ice.
Swimming is possible at Little Chapman Lake where public or private access and local ordinances permit, but it depends on water quality, signage and safety considerations. Warmer summer temperatures usually make swimming comfortable, yet summer can also bring higher algal activity or aquatic vegetation that may restrict desirable swim areas. Early- and late-season water can be dangerously cold, posing a risk of cold-water shock below about 60°F (15°C). Visitors should confirm current water-quality advisories, respect posted rules about swimming access, and take standard precautions such as supervising children and avoiding areas with heavy vegetation or unsafe boat traffic.