Amistad Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Amistad Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Amistad Reservoir today is 20.2°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 |
|---|---|---|---|
| OCT 26 | 21.7°C | 25.5°C | |
| OCT 27 | 21.7°C | 25.5°C | |
| OCT 28 | 21.6°C | 25.5°C | |
| OCT 29 | 21.3°C | 25.5°C | |
| OCT 30 | 21.1°C | 25.5°C | |
| OCT 31 | 21.2°C | 25.5°C | |
| NOV 1 | 20.7°C | 19.2°C | |
| NOV 2 | 20.2°C | 19.2°C | |
| NOV 3 | 19.2°C | 20.2°C | |
| NOV 4 | 19.2°C | 20.1°C | |
| NOV 5 | 19.2°C | 20.1°C | |
| NOV 6 | 19.2°C | 20.0°C | |
| NOV 7 | 19.2°C | 20.0°C | |
| NOV 8 | 19.2°C | 19.9°C | |
| NOV 9 | 19.2°C | 19.9°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 | 8°C | 13°C | 19°C |
| February | 9°C | 15°C | 21°C |
| March | 9°C | 17°C | 24°C |
| April | 16°C | 23°C | 29°C |
| May | 20°C | 26°C | 33°C |
| June | 23°C | 27°C | 31°C |
| July | 26°C | 30°C | 35°C |
| August | 25°C | 30°C | 34°C |
| September | 25°C | 29°C | 32°C |
| October | 22°C | 26°C | 29°C |
| November | 15°C | 19°C | 24°C |
| December | 13°C | 16°C | 19°C |
Amistad Reservoir: Water Temperature by Location
Amistad Reservoir: Weather Forecast
November 3
November 4
November 5
November 6
November 7
November 8
Location & Local Information
Amistad Reservoir, straddling the Texas–Mexico border, exhibits substantial seasonal and depth-related variation in water temperature. Surface temperatures in summer commonly range from about 80–92°F (27–33°C), making the shallows quite warm. In spring and fall the reservoir more typically sits around 60–78°F (16–26°C), and winter surface readings often fall into the 45–60°F (7–16°C) band. Because Amistad is a deep impoundment, deeper water remains noticeably colder than the surface; thermoclines can produce temperatures closer to or below 40–50°F (4–10°C) at depth even when surface values are moderate.
Swimming is generally permitted at Amistad in designated shoreline parks, marinas, and quiet coves because the reservoir is managed for multiple recreation uses. Visitors should be aware that there are usually no lifeguards on duty, water levels and access change with dam operations, and water quality or algal blooms can intermittently affect conditions. Temperature considerations are important: warm summer surface water is comfortable for most swimmers, while cold winter or deep water poses hypothermia risks. Boat traffic and submerged hazards also influence where and when swimming is safest.