Beech Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Beech Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Beech Lake today is 20.3°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 |
|---|---|---|---|
| OCT 5 | 22.9°C | 22.0°C | |
| OCT 6 | 22.1°C | 22.0°C | |
| OCT 7 | 21.9°C | 22.0°C | |
| OCT 8 | 21.9°C | 22.0°C | |
| OCT 9 | 21.1°C | 22.0°C | |
| OCT 10 | 20.8°C | 22.0°C | |
| OCT 11 | 21.3°C | 22.0°C | |
| OCT 12 | 21.4°C | 22.0°C | |
| OCT 13 | 22.0°C | 20.4°C | |
| OCT 14 | 22.0°C | 20.5°C | |
| OCT 15 | 22.0°C | 20.6°C | |
| OCT 16 | 22.0°C | 20.6°C | |
| OCT 17 | 22.0°C | 20.7°C | |
| OCT 18 | 22.0°C | 20.8°C | |
| OCT 19 | 22.0°C | 20.9°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 | 2°C | 7°C | 11°C |
| February | 2°C | 6°C | 11°C |
| March | 4°C | 11°C | 17°C |
| April | 3°C | 13°C | 23°C |
| May | 15°C | 20°C | 26°C |
| June | 19°C | 23°C | 28°C |
| July | 24°C | 28°C | 32°C |
| August | 21°C | 26°C | 31°C |
| September | 23°C | 26°C | 30°C |
| October | 18°C | 22°C | 26°C |
| November | 10°C | 14°C | 18°C |
| December | 5°C | 8°C | 11°C |
Beech Lake: Water Temperature by Location
Beech Lake: Weather Forecast
October 13
October 14
October 15
October 16
October 17
October 18
Location & Local Information
Beech Lake’s water temperatures follow the seasonal pattern typical of small inland lakes in Tennessee. In winter the surface often cools to roughly 35–50°F (2–10°C), while spring sees a steady rise to around 50–65°F (10–18°C) as the lake mixes and warms. Peak summer temperatures commonly reach 70–85°F (21–29°C) in shallower areas and surface layers, with the warmest conditions from mid-June through August. During fall the water cools again, typically ranging from about 55–70°F (13–21°C) depending on air temperature and recent weather.
Swimming at Beech Lake is generally possible during the warmer months when surface temperatures are comfortable and local rules permit recreational use, but it depends on management, posted restrictions, and water quality. Many public lakes in Tennessee allow seasonal swimming because warm summer water supports recreational bathers, but authorities may close or limit access for safety reasons such as strong currents, submerged hazards, poor water clarity, contamination events, or harmful algal blooms. Cold water in spring and late fall increases the risk of hypothermia even when air temperatures seem mild. Visitors should check local signage and advisories, use designated swimming areas where available, and take standard water-safety precautions.