Kentucky Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Kentucky Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Kentucky Lake today is 24.8°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 |
|---|---|---|---|
| JUN 3 | 20.9°C | 24.0°C | |
| JUN 4 | 20.9°C | 24.0°C | |
| JUN 5 | 22.3°C | 24.0°C | |
| JUN 6 | 22.5°C | 24.0°C | |
| JUN 7 | 24.1°C | 24.0°C | |
| JUN 8 | 24.2°C | 24.0°C | |
| JUN 10 | 24.4°C | 24.0°C | |
| JUN 11 | 24.0°C | 24.8°C | |
| JUN 12 | 24.0°C | 24.7°C | |
| JUN 13 | 24.0°C | 24.7°C | |
| JUN 14 | 24.0°C | 24.6°C | |
| JUN 15 | 24.0°C | 24.6°C | |
| JUN 16 | 24.0°C | 24.6°C | |
| JUN 17 | 24.0°C | 24.5°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 | 6°C | 9°C |
| February | 2°C | 7°C | 11°C |
| March | 4°C | 11°C | 17°C |
| April | 13°C | 17°C | 22°C |
| May | 15°C | 20°C | 25°C |
| June | 20°C | 24°C | 27°C |
| July | 24°C | 26°C | 29°C |
| August | 24°C | 26°C | 29°C |
| September | 23°C | 26°C | 29°C |
| October | 19°C | 23°C | 26°C |
| November | 10°C | 15°C | 19°C |
| December | 5°C | 9°C | 11°C |
Kentucky Lake: Water Temperature by Location
Kentucky Lake: Weather Forecast
June 9
June 10
June 11
June 12
Location & Local Information
Kentucky Lake, a large TVA reservoir on the Tennessee River, shows marked seasonal variation in surface temperatures. In winter months the water often cools to roughly 35–50°F (2–10°C). During spring it warms into the 50–70°F range (10–21°C) as seasonal runoff and air temperatures rise. In summer the lake’s surface typically reaches comfortable levels for swimming, commonly around 75–85°F (24–29°C), and in shallow coves can briefly approach 90°F (32°C) during heat waves. Autumn brings a steady decline, with surface temperatures usually between 55–75°F (13–24°C) as the lake sheds summer heat. Deeper water remains colder year-round and thermoclines can produce much cooler conditions below the surface.
Swimming is generally allowed in many parts of Kentucky Lake and the reservoir is used widely for recreation, with a number of park beaches and public access points designated for bathing. However, there are important safety and water-quality considerations: many areas are unsupervised with no lifeguards, boat traffic and wake zones increase risk, submerged structure and sudden drop-offs can be hazardous, and colder shoulder-season temperatures raise the chance of cold shock. Occasional algal blooms or runoff events may prompt advisories, so swimmers should choose designated swim areas, check local notices, and exercise caution.