Embalse de Portodemouros — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Embalse de Portodemouros, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Embalse de Portodemouros today is 20°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 |
|---|---|---|---|
| AUG 24 | 21.5°C | 24.0°C | |
| AUG 25 | 21.5°C | 24.0°C | |
| AUG 26 | 21.5°C | 24.0°C | |
| AUG 27 | 20.8°C | 24.0°C | |
| AUG 28 | 20.8°C | 24.0°C | |
| AUG 29 | 20.8°C | 24.0°C | |
| AUG 30 | 20.0°C | 24.0°C | |
| AUG 31 | 20.0°C | 24.0°C | |
| SEP 1 | 21.0°C | 20.1°C | |
| SEP 2 | 21.0°C | 20.1°C | |
| SEP 3 | 21.0°C | 20.2°C | |
| SEP 4 | 21.0°C | 20.2°C | |
| SEP 5 | 21.0°C | 20.3°C | |
| SEP 6 | 21.0°C | 20.3°C | |
| SEP 7 | 21.0°C | 20.4°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 | 10°C | 13°C |
| February | 6°C | 10°C | 13°C |
| March | 8°C | 12°C | 15°C |
| April | 10°C | 14°C | 18°C |
| May | 12°C | 18°C | 23°C |
| June | 16°C | 21°C | 26°C |
| July | 19°C | 24°C | 29°C |
| August | 19°C | 24°C | 29°C |
| September | 16°C | 21°C | 26°C |
| October | 13°C | 18°C | 21°C |
| November | 9°C | 13°C | 17°C |
| December | 6°C | 10°C | 13°C |
Embalse de Portodemouros: Water Temperature by Location
Embalse de Portodemouros: Weather Forecast
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Location & Local Information
The Embalse de Portodemouros in Galicia is a mid-sized reservoir whose surface water temperatures reflect the region’s Atlantic climate and seasonal sunlight. Typical winter readings are around 6–10 °C (43–50 °F), spring values climb to roughly 10–16 °C (50–61 °F), summer surface temperatures often reach 18–24 °C (64–75 °F), and autumn usually falls between 12–18 °C (54–64 °F). These figures vary with recent weather, depth and inflow from the Tambre river: deeper or shaded areas remain noticeably colder, and late heatwaves or cold spells can shift the ranges by a few degrees. Water clarity and temperature stratification mean the warmest, most comfortable swimming is generally limited to late July and August.
Swimming at Embalse de Portodemouros is practiced recreationally, but whether it is formally allowed depends on local rules, signage and water-quality conditions; some shoreline spots are used by locals while other areas near infrastructure or inflows may be restricted. There are typically no lifeguards, and swimmers should be cautious about cold shock, submerged obstacles, strong currents near the dam or intakes, and occasional algal growth after warm, calm periods. Checking municipal guidance and recent water-quality notices is recommended before entering the water.