Represa de Vale Rossim — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Represa de Vale Rossim, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Represa de Vale Rossim today is 18.4°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 4 | 17.6°C | 22.0°C | |
| AUG 5 | 17.5°C | 22.0°C | |
| AUG 6 | 17.5°C | 22.0°C | |
| AUG 7 | 17.9°C | 22.0°C | |
| AUG 8 | 17.9°C | 22.0°C | |
| AUG 9 | 17.9°C | 22.0°C | |
| AUG 10 | 18.3°C | 22.0°C | |
| AUG 11 | 18.4°C | 22.0°C | |
| AUG 12 | 22.0°C | 18.6°C | |
| AUG 13 | 22.0°C | 18.8°C | |
| AUG 14 | 22.0°C | 18.9°C | |
| AUG 15 | 22.0°C | 19.1°C | |
| AUG 16 | 22.0°C | 19.3°C | |
| AUG 17 | 22.0°C | 19.5°C | |
| AUG 18 | 22.0°C | 19.7°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 | 0°C | 3°C | 6°C |
| February | 1°C | 5°C | 8°C |
| March | 2°C | 6°C | 9°C |
| April | 4°C | 8°C | 13°C |
| May | 8°C | 13°C | 19°C |
| June | 12°C | 20°C | 28°C |
| July | 15°C | 21°C | 26°C |
| August | 17°C | 22°C | 27°C |
| September | 14°C | 20°C | 25°C |
| October | 8°C | 12°C | 15°C |
| November | 4°C | 8°C | 11°C |
| December | 1°C | 6°C | 9°C |
Represa de Vale Rossim: Water Temperature by Location
Represa de Vale Rossim: Weather Forecast
August 12
August 13
August 14
August 15
Location & Local Information
Represa de Vale Rossim, in the Guarda District of Portugal, is a high-altitude reservoir whose water temperature is strongly influenced by seasonal weather, elevation and dam operations. In summer months the surface commonly warms to roughly 18–24 °C (64–75 °F), with sheltered bays occasionally reaching the mid-20s °C (mid-70s to upper-70s °F) on very warm spells. Spring and autumn temperatures typically sit between about 8–16 °C (46–61 °F), while winter surface values often fall to roughly 4–8 °C (39–46 °F). Thermal layering and releases from the dam can create colder pockets below the surface, so deeper water is usually several degrees colder than the surface reading.
Swimming at Represa de Vale Rossim is practiced by visitors in the warmer months, but whether it is formally allowed depends on local rules and safety considerations. Because the site is a managed reservoir used for water storage and hydroelectric control and lies near protected mountain areas, authorities may restrict bathing in some zones or at certain times; signage and local guidance should be followed. Even where swimming is permitted, risks include cold shock from low temperatures, sudden currents near outlets, submerged obstacles and steep banks, so caution and awareness of regulations are important.