Lake Wawasee — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Wawasee, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Wawasee today is 25.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 24 | 24.8°C | 25.2°C | |
| AUG 25 | 24.8°C | 25.2°C | |
| AUG 26 | 24.5°C | 25.2°C | |
| AUG 27 | 24.8°C | 25.2°C | |
| AUG 28 | 25.0°C | 25.2°C | |
| AUG 29 | 24.9°C | 25.2°C | |
| AUG 30 | 24.9°C | 25.2°C | |
| AUG 31 | 24.7°C | 25.2°C | |
| SEP 1 | 23.5°C | 25.7°C | |
| SEP 2 | 23.5°C | 25.6°C | |
| SEP 3 | 23.5°C | 25.5°C | |
| SEP 4 | 23.5°C | 25.3°C | |
| SEP 5 | 23.5°C | 25.2°C | |
| SEP 6 | 23.5°C | 25.1°C | |
| SEP 7 | 23.5°C | 25.0°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 | 2°C | 9°C | 15°C |
| February | 2°C | 9°C | 15°C |
| March | 3°C | 10°C | 16°C |
| April | 6°C | 13°C | 20°C |
| May | 11°C | 17°C | 22°C |
| June | 16°C | 21°C | 25°C |
| July | 23°C | 27°C | 31°C |
| August | 22°C | 25°C | 29°C |
| September | 20°C | 24°C | 27°C |
| October | 15°C | 19°C | 22°C |
| November | 5°C | 11°C | 17°C |
| December | 1°C | 7°C | 11°C |
Lake Wawasee: Water Temperature by Location
Lake Wawasee: Weather Forecast
September 1
September 2
September 3
September 4
September 5
September 6
Location & Local Information
Lake Wawasee, the largest natural lake in Indiana, experiences distinct seasonal shifts in surface water temperature. In spring (April–May) the surface typically warms from roughly 45–65°F (7–18°C) as air temperatures rise. By early summer (June) water commonly reaches 65–75°F (18–24°C), and peak summer (July–August) often brings the warmest conditions, with surface readings frequently in the 75–84°F range (24–29°C). As autumn arrives (September–October) the surface cools back toward 60–45°F (15–7°C). In winter the lake usually approaches freezing at the surface, around 32–40°F (0–4°C) where ice formation is possible and the water under ice stays near freezing.
Swimming in Lake Wawasee is generally permitted and popular during the warmer months because surface temperatures in summer reach comfortable levels for recreational bathing. Public access points, private beaches, and docks provide places to enter the water, but conditions can vary by location and day. Local authorities and health departments monitor water quality and will issue advisories if safety concerns arise, such as harmful algal blooms or bacterial contamination. In colder months swimming is not advised because of near‑freezing temperatures, the risk of cold‑water shock, and potential ice hazards. Always check current local guidance before entering the water.