Guadiana River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Guadiana River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Guadiana River today is 18.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 |
|---|---|---|---|
| JUN 2 | 20.6°C | 21.0°C | |
| JUN 3 | 19.8°C | 21.0°C | |
| JUN 4 | 19.7°C | 21.0°C | |
| JUN 5 | 19.7°C | 21.0°C | |
| JUN 6 | 19.7°C | 21.0°C | |
| JUN 7 | 19.0°C | 21.0°C | |
| JUN 8 | 18.9°C | 21.0°C | |
| JUN 10 | 21.0°C | 18.9°C | |
| JUN 11 | 21.0°C | 19.0°C | |
| JUN 12 | 21.0°C | 19.1°C | |
| JUN 13 | 21.0°C | 19.2°C | |
| JUN 14 | 21.0°C | 19.4°C | |
| JUN 15 | 21.0°C | 19.5°C | |
| JUN 16 | 21.0°C | 19.6°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 | 6°C | 9°C | 12°C |
| February | 6°C | 9°C | 13°C |
| March | 6°C | 10°C | 14°C |
| April | 9°C | 13°C | 18°C |
| May | 13°C | 18°C | 22°C |
| June | 17°C | 21°C | 26°C |
| July | 18°C | 23°C | 27°C |
| August | 19°C | 24°C | 28°C |
| September | 18°C | 22°C | 27°C |
| October | 12°C | 16°C | 18°C |
| November | 9°C | 13°C | 16°C |
| December | 8°C | 11°C | 14°C |
Guadiana River: Water Temperature by Location
Guadiana River: Weather Forecast
June 9
June 10
June 11
June 12
June 13
June 14
Location & Local Information
Source Ojos del Guadiana
• location Villarrubia de los Ojos, Castile–La Mancha, Spain
• coordinates 39°7′36″N 3°43′36″W
• elevation 608 m (1,995 ft)
Mouth Gulf of Cádiz
• location Vila Real de Santo António, Algarve, Portugal
• coordinates 37°10′12″N 7°23′37″W
• elevation 0 m (0 ft)
Length 818 km (508 mi)
The Río Guadiana in Extremadura shows marked seasonal and local variation in water temperature. In winter surface waters commonly sit between about 6–12 °C (43–54 °F), while spring temperatures typically rise to roughly 12–18 °C (54–64 °F). Summer is when the river and its associated reservoirs warm most, often reaching around 18–26 °C (64–79 °F) in shallower, slow-moving stretches; shallow backwaters and embalses can occasionally climb a couple degrees higher on very hot days. Autumn temperatures tend to fall back toward 12–20 °C (54–68 °F). These figures vary with depth, flow rate and local sunlight: deep channels and zones below dams remain cooler year-round, while shallow, stagnant lagoons warm more quickly.
Swimming in the Guadiana is possible and commonly practiced in many parts of Extremadura, especially at designated bathing spots and reservoir beaches where access is safe and water quality is monitored. However it is not universally permitted everywhere: areas near dams, intake structures, fast currents, or protected natural zones are often off-limits for safety or conservation reasons. Water quality can fluctuate after heavy rains or during algal blooms, and lifeguards are not always present, so swimmers should follow local signage, seasonal advisories and basic safety precautions when entering the river.