Lake Arlington — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Arlington, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Arlington today is 28.6°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 |
|---|---|---|---|
| SEP 14 | 29.5°C | 28.2°C | |
| SEP 15 | 29.4°C | 28.2°C | |
| SEP 16 | 29.2°C | 28.2°C | |
| SEP 17 | 28.9°C | 28.2°C | |
| SEP 18 | 29.0°C | 28.2°C | |
| SEP 19 | 28.8°C | 28.2°C | |
| SEP 20 | 28.5°C | 28.2°C | |
| SEP 21 | 28.6°C | 28.2°C | |
| SEP 22 | 28.2°C | 28.6°C | |
| SEP 23 | 28.2°C | 28.6°C | |
| SEP 24 | 28.2°C | 28.5°C | |
| SEP 25 | 28.2°C | 28.5°C | |
| SEP 26 | 28.2°C | 28.5°C | |
| SEP 27 | 28.2°C | 28.5°C | |
| SEP 28 | 28.2°C | 28.5°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 | 7°C | 12°C | 16°C |
| February | 6°C | 12°C | 18°C |
| March | 8°C | 14°C | 21°C |
| April | 16°C | 20°C | 25°C |
| May | 19°C | 24°C | 29°C |
| June | 23°C | 26°C | 29°C |
| July | 25°C | 29°C | 33°C |
| August | 26°C | 30°C | 34°C |
| September | 25°C | 28°C | 32°C |
| October | 21°C | 23°C | 26°C |
| November | 12°C | 17°C | 22°C |
| December | 8°C | 13°C | 18°C |
Lake Arlington: Water Temperature by Location
Lake Arlington: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Lake Arlington’s surface water temperatures follow the pattern typical of North Texas reservoirs, warming in summer and cooling through fall and winter. In summer months surface readings commonly reach about 75–90°F (24–32°C) on warm spells, while spring and fall see transitional ranges roughly 55–75°F (13–24°C) depending on recent weather. During winter the lake often cools to the 40–55°F range (4–13°C). These are approximate surface values; temperatures vary by depth, weather, wind, and inflows, so actual conditions can shift day to day and with seasonal weather patterns.
Swimming at Lake Arlington is not provided for as an organized activity and is generally discouraged or prohibited by local authorities because the site lacks designated swim beaches, lifeguards, and routine water-quality monitoring. The lake is managed primarily for boating, fishing, and shoreline recreation, and concerns such as submerged hazards, boat traffic, and variable water quality are cited as reasons to avoid unsupervised swimming. While people may sometimes enter the water informally, the safest option for recreational swimming is to use locations with designated swim areas, posted water-quality information, and lifeguard supervision.