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 27.9°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 |
|---|---|---|---|
| JUL 14 | 28.3°C | 29.5°C | |
| JUL 15 | 30.7°C | 29.5°C | |
| JUL 16 | 30.6°C | 29.5°C | |
| JUL 17 | 27.3°C | 29.5°C | |
| JUL 18 | 27.8°C | 29.5°C | |
| JUL 19 | 27.8°C | 29.5°C | |
| JUL 20 | 27.8°C | 29.5°C | |
| JUL 21 | 27.9°C | 29.5°C | |
| JUL 22 | 29.5°C | 28.0°C | |
| JUL 23 | 29.5°C | 28.1°C | |
| JUL 24 | 29.5°C | 28.1°C | |
| JUL 25 | 29.5°C | 28.2°C | |
| JUL 26 | 29.5°C | 28.3°C | |
| JUL 27 | 29.5°C | 28.4°C | |
| JUL 28 | 29.5°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 | 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 | 33°C |
| August | 25°C | 28°C | 30°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
July 22
July 23
July 24
July 25
July 26
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.