Lake Ross Barnett — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Ross Barnett, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Ross Barnett today is 29.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating. 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 | 29.4°C | 29.0°C | |
| AUG 25 | 29.4°C | 29.0°C | |
| AUG 26 | 29.4°C | 29.0°C | |
| AUG 27 | 29.4°C | 29.0°C | |
| AUG 28 | 29.1°C | 29.0°C | |
| AUG 29 | 29.1°C | 29.0°C | |
| AUG 30 | 29.1°C | 29.0°C | |
| AUG 31 | 29.3°C | 29.0°C | |
| SEP 1 | 29.0°C | 29.4°C | |
| SEP 2 | 29.0°C | 29.4°C | |
| SEP 3 | 29.0°C | 29.3°C | |
| SEP 4 | 29.0°C | 29.3°C | |
| SEP 5 | 29.0°C | 29.3°C | |
| SEP 6 | 29.0°C | 29.3°C | |
| SEP 7 | 29.0°C | 29.3°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 | 5°C | 13°C | 19°C |
| February | 5°C | 11°C | 17°C |
| March | 13°C | 17°C | 21°C |
| April | 14°C | 19°C | 24°C |
| May | 19°C | 25°C | 30°C |
| June | 20°C | 27°C | 33°C |
| July | 24°C | 30°C | 36°C |
| August | 24°C | 29°C | 34°C |
| September | 23°C | 29°C | 35°C |
| October | 22°C | 28°C | 33°C |
| November | 15°C | 19°C | 23°C |
| December | 9°C | 15°C | 20°C |
Lake Ross Barnett: Water Temperature by Location
Lake Ross Barnett: Weather Forecast
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Location & Local Information
Ross Barnett Reservoir, often called Ross Barnett Lake near Jackson, Mississippi, experiences noticeable seasonal changes in surface water temperature. In winter (December–February) surface temperatures commonly range from about 40–55°F (4–13°C). Spring (March–May) sees warming into roughly 55–75°F (13–24°C) as air temperatures rise and runoff increases. Peak summer (June–August) surface readings often sit between about 75–90°F (24–32°C), with shallower, sun-exposed bays warming most. During fall (September–November) the water typically cools back toward roughly 60–75°F (16–24°C). These are general ranges; local conditions, depth, sunlight, and recent weather events can push temperatures a few degrees higher or lower.
Swimming is possible at Ross Barnett Reservoir in many recreational areas, but it is not uniformly regulated or supervised across the entire lake. The reservoir is a multi-use waterbody used for boating, fishing, and as part of regional water supply infrastructure, so there are concerns about heavy boat traffic, submerged hazards, variable water quality, and occasional advisories that can limit or discourage swimming. Few locations offer lifeguards, and managers may post restrictions or warnings after storms or algal blooms. Anyone planning to swim should choose designated recreation sites when available, check local notices, and take normal safety precautions regarding currents, boats, and water quality.