White Rock Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in White Rock Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in White Rock Lake today is 27.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays. 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 | 27.2°C | 29.1°C | |
| SEP 15 | 26.9°C | 29.1°C | |
| SEP 16 | 26.9°C | 29.1°C | |
| SEP 17 | 26.7°C | 29.1°C | |
| SEP 18 | 27.0°C | 29.1°C | |
| SEP 19 | 27.5°C | 29.1°C | |
| SEP 20 | 28.0°C | 29.1°C | |
| SEP 21 | 27.7°C | 29.1°C | |
| SEP 22 | 29.1°C | 27.8°C | |
| SEP 23 | 29.1°C | 27.8°C | |
| SEP 24 | 29.1°C | 27.9°C | |
| SEP 25 | 29.1°C | 28.0°C | |
| SEP 26 | 29.1°C | 28.1°C | |
| SEP 27 | 29.1°C | 28.1°C | |
| SEP 28 | 29.1°C | 28.2°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 | 10°C | 14°C |
| February | 6°C | 11°C | 17°C |
| March | 8°C | 14°C | 21°C |
| April | 16°C | 20°C | 25°C |
| May | 17°C | 22°C | 28°C |
| June | 23°C | 26°C | 29°C |
| July | 25°C | 30°C | 35°C |
| August | 25°C | 29°C | 34°C |
| September | 26°C | 29°C | 33°C |
| October | 20°C | 24°C | 27°C |
| November | 13°C | 17°C | 21°C |
| December | 8°C | 12°C | 16°C |
White Rock Lake: Water Temperature by Location
White Rock Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
White Rock Lake in Dallas, Texas, experiences notable seasonal swings in surface water temperature. Because the reservoir is relatively shallow and sits in an urban heat island, surface readings in winter commonly range from about 40–55°F (4–13°C). Spring sees a steady rise into roughly 55–70°F (13–21°C), while fall temperatures typically sit between 60–75°F (16–24°C) as air temperatures cool. In summer the surface can warm substantially, frequently reaching 75–85°F (24–29°C) and, during heat waves or in sheltered bays, sometimes climbing into the low 90s°F (around 32–33°C). Local conditions such as recent rainfall, time of day and wind can shift these values, and deeper or shaded spots will be cooler than sunny shallows.
Officially, swimming in White Rock Lake is not permitted. The city and park authorities cite safety and water-quality concerns, the absence of lifeguards, submerged hazards and boat traffic, and liability issues as reasons for the prohibition. Despite occasional informal swimming by some visitors, the ban remains in place to reduce health risks from urban runoff and to prevent accidents; visitors seeking supervised swimming are directed to designated pools and staffed aquatic facilities elsewhere in the Dallas area.