Varosa Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Varosa Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Varosa Reservoir 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 |
|---|---|---|---|
| OCT 10 | 20.1°C | 18.0°C | |
| OCT 11 | 19.8°C | 18.0°C | |
| OCT 12 | 19.2°C | 18.0°C | |
| OCT 13 | 18.9°C | 18.0°C | |
| OCT 14 | 18.7°C | 18.0°C | |
| OCT 15 | 18.7°C | 18.0°C | |
| OCT 16 | 18.6°C | 18.0°C | |
| OCT 17 | 18.8°C | 18.0°C | |
| OCT 18 | 18.0°C | 18.8°C | |
| OCT 19 | 18.0°C | 18.7°C | |
| OCT 20 | 18.0°C | 18.7°C | |
| OCT 21 | 18.0°C | 18.6°C | |
| OCT 22 | 18.0°C | 18.6°C | |
| OCT 23 | 18.0°C | 18.6°C | |
| OCT 24 | 18.0°C | 18.5°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 | 5°C | 9°C | 12°C |
| February | 5°C | 9°C | 13°C |
| March | 8°C | 12°C | 15°C |
| April | 11°C | 15°C | 19°C |
| May | 14°C | 20°C | 25°C |
| June | 17°C | 22°C | 27°C |
| July | 19°C | 24°C | 29°C |
| August | 20°C | 25°C | 30°C |
| September | 17°C | 22°C | 27°C |
| October | 13°C | 18°C | 21°C |
| November | 9°C | 14°C | 18°C |
| December | 5°C | 9°C | 13°C |
Varosa Reservoir: Water Temperature by Location
Varosa Reservoir: Weather Forecast
October 18
October 19
October 20
October 21
October 22
Location & Local Information
The Albufeira da Barragem do Varosa, in the Viseu district of Portugal, typically exhibits seasonal water temperatures that reflect its inland, temperate climate and reservoir depth. In winter the water is cold, commonly ranging from about 6 to 12 °C (43 to 54 °F), while spring brings a gradual rise to roughly 10 to 18 °C (50 to 64 °F). Summer surface temperatures can be the warmest, often between 18 and 26 °C (64 to 79 °F) at peak heat, although deeper or shaded areas remain cooler. During autumn the reservoir usually cools back to roughly 12 to 18 °C (54 to 64 °F). Actual readings vary with recent weather, inflow from the Varosa River, reservoir level and local microclimate, so short-term temperatures can differ from these seasonal averages.
Swimming at Albufeira da Barragem do Varosa is subject to local management and safety considerations rather than being universally recommended. Many Portuguese storage reservoirs restrict or discourage casual bathing because they are working water bodies: risks include sudden depth changes, underwater obstacles, boat traffic, colder deep water, and potential water-quality or algal-bloom issues, and there are often no lifeguards. In some places limited, supervised or designated swimming areas may be allowed; therefore visitors should follow municipal rules, posted signs and guidance from authorities before entering the water.