Tennessee River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Tennessee River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Tennessee River today is 47°F.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 47°F (8°C) to 50°F (10°C). This is still cool water, suitable only for experienced swimmers or those accustomed to cold water. Swimming in such conditions is possible, but not recommended for prolonged periods. Extra caution should be taken during extended exposure, as the cold water can cause heat loss and lead to hypothermia. For added comfort, special clothing can be used. 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 |
|---|---|---|---|
| JAN 15 | 48°F | 42°F | |
| JAN 16 | 48°F | 42°F | |
| JAN 17 | 47°F | 42°F | |
| JAN 18 | 47°F | 42°F | |
| JAN 19 | 47°F | 42°F | |
| JAN 20 | 47°F | 42°F | |
| JAN 21 | 47°F | 42°F | |
| JAN 23 | 42°F | 47°F | |
| JAN 24 | 42°F | 46°F | |
| JAN 25 | 42°F | 46°F | |
| JAN 26 | 42°F | 46°F | |
| JAN 27 | 42°F | 46°F | |
| JAN 28 | 42°F | 45°F | |
| JAN 29 | 42°F | 45°F |
* 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 | 36°F | 42°F | 50°F |
| February | 37°F | 42°F | 48°F |
| March | 37°F | 47°F | 57°F |
| April | 41°F | 54°F | 66°F |
| May | 46°F | 60°F | 73°F |
| June | 57°F | 67°F | 77°F |
| July | 63°F | 68°F | 75°F |
| August | 63°F | 69°F | 75°F |
| September | 52°F | 63°F | 73°F |
| October | 46°F | 59°F | 72°F |
| November | 37°F | 51°F | 64°F |
| December | 43°F | 47°F | 54°F |
Tennessee River: Water Temperature by Location
Tennessee River: Weather Forecast
January 22
January 23
January 24
January 25
Location & Local Information
Source Confluence of French Broad and Holston rivers at Knoxville
• elevation 813 ft (248 m)
Mouth Ohio River at Livingston / McCracken counties, near Paducah, Kentucky
• elevation 302 ft (92 m)
Length 652 mi (1,049 km)
The Tennessee River, stretching through several states including Tennessee, Alabama, and Kentucky, is a major waterway known for its large, wide sections and calm waters in many areas. The river's water temperature varies depending on the season, generally ranging from 50 to 80°F (10 to 27°C) during the year. In the warmer months, particularly from late spring to early fall, the water tends to be warmer, making it comfortable for swimming, especially in the slower-moving sections. In contrast, the water becomes much cooler in the winter, usually dropping to below 50°F (10°C), which makes swimming more challenging and less popular.
Swimming in the Tennessee River is a popular activity, particularly in its calmer, lake-like stretches, such as those near reservoirs and parks. Many people enjoy wading, swimming, or tubing in these areas during the summer, taking advantage of the pleasant water temperatures. While the river is generally safe for swimming in designated areas, it's important for swimmers to remain aware of potential hazards such as strong currents in deeper sections, sudden drop-offs, or watercraft traffic. Additionally, as with any large river, water quality can fluctuate, and it’s advisable to check for any advisories before swimming.
In addition to swimming, the Tennessee River is known for a variety of water-based activities such as fishing, boating, and kayaking. The river’s scenic beauty and accessibility make it a popular spot for outdoor recreation, offering a great mix of relaxation and adventure for those looking to enjoy the water. Whether for a quick swim or a leisurely float, the Tennessee River provides a refreshing environment, especially during the summer months.