Granger Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Granger Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Granger Lake today is 33.2°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 4 | 32.1°C | 29.1°C | |
| AUG 5 | 32.1°C | 29.1°C | |
| AUG 6 | 32.1°C | 29.1°C | |
| AUG 7 | 32.1°C | 29.1°C | |
| AUG 8 | 32.4°C | 29.1°C | |
| AUG 9 | 32.4°C | 29.1°C | |
| AUG 10 | 32.8°C | 29.1°C | |
| AUG 11 | 33.1°C | 29.1°C | |
| AUG 12 | 29.1°C | 33.0°C | |
| AUG 13 | 29.1°C | 32.8°C | |
| AUG 14 | 29.1°C | 32.6°C | |
| AUG 15 | 29.1°C | 32.4°C | |
| AUG 16 | 29.1°C | 32.2°C | |
| AUG 17 | 29.1°C | 32.0°C | |
| AUG 18 | 29.1°C | 31.8°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 | 13°C | 19°C |
| February | 7°C | 13°C | 19°C |
| March | 8°C | 15°C | 23°C |
| April | 16°C | 21°C | 27°C |
| May | 18°C | 24°C | 30°C |
| June | 24°C | 27°C | 30°C |
| July | 26°C | 30°C | 33°C |
| August | 25°C | 29°C | 34°C |
| September | 26°C | 29°C | 32°C |
| October | 23°C | 26°C | 29°C |
| November | 14°C | 20°C | 24°C |
| December | 9°C | 14°C | 20°C |
Granger Lake: Water Temperature by Location
Granger Lake: Weather Forecast
August 12
August 13
August 14
August 15
Location & Local Information
Granger Lake in central Texas typically follows seasonal patterns common to shallow reservoirs. Surface temperatures in winter often range from about 45–55°F (7–13°C), spring warming brings surface values into the 55–75°F (13–24°C) band, summer highs commonly reach 75–90°F (24–32°C) or a bit higher in heat waves, and fall temperatures generally cool back into the 60–75°F (16–24°C) range. Deeper water remains cooler year-round and stratification can produce colder pockets below the surface; wind, inflows and dam releases also cause local temperature variation.
Swimming is permitted in many public access areas around Granger Lake, but there are typically no lifeguards and recreational users swim at their own risk. Summer and late spring are when water temperatures are most comfortable for swimming, while colder winter temperatures make prolonged immersion unpleasant and potentially hazardous. Swimmers should be cautious of boat traffic, changing water levels, submerged structure and cooler currents near inlets or dam releases, all of which affect safety regardless of surface temperature.