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 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 |
|---|---|---|---|
| SEP 14 | 25.2°C | 26.3°C | |
| SEP 15 | 25.1°C | 26.3°C | |
| SEP 16 | 25.0°C | 26.3°C | |
| SEP 17 | 24.8°C | 26.3°C | |
| SEP 18 | 25.4°C | 26.3°C | |
| SEP 19 | 25.2°C | 26.3°C | |
| SEP 20 | 25.0°C | 26.3°C | |
| SEP 21 | 24.8°C | 26.3°C | |
| SEP 22 | 26.3°C | 24.9°C | |
| SEP 23 | 26.3°C | 25.0°C | |
| SEP 24 | 26.3°C | 25.0°C | |
| SEP 25 | 26.3°C | 25.1°C | |
| SEP 26 | 26.3°C | 25.2°C | |
| SEP 27 | 26.3°C | 25.3°C | |
| SEP 28 | 26.3°C | 25.3°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
September 21
September 22
September 23
September 24
September 25
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.