Mal. Carmona Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Mal. Carmona Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Mal. Carmona Reservoir today is 28.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating. 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 30 | 22.0°C | 26.0°C | |
| AUG 31 | 22.0°C | 26.0°C | |
| SEP 1 | 21.3°C | 25.0°C | |
| SEP 2 | 21.2°C | 25.0°C | |
| SEP 3 | 27.1°C | 25.0°C | |
| SEP 4 | 27.4°C | 25.0°C | |
| SEP 5 | 28.3°C | 25.0°C | |
| SEP 6 | 28.1°C | 25.0°C | |
| SEP 7 | 25.0°C | 27.9°C | |
| SEP 8 | 25.0°C | 27.8°C | |
| SEP 9 | 25.0°C | 27.6°C | |
| SEP 10 | 25.0°C | 27.5°C | |
| SEP 11 | 25.0°C | 27.3°C | |
| SEP 12 | 25.0°C | 27.2°C | |
| SEP 13 | 25.0°C | 27.0°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 | 9°C | 13°C | 17°C |
| April | 10°C | 15°C | 20°C |
| May | 11°C | 18°C | 25°C |
| June | 18°C | 23°C | 28°C |
| July | 21°C | 26°C | 32°C |
| August | 21°C | 26°C | 32°C |
| September | 20°C | 25°C | 30°C |
| October | 16°C | 20°C | 23°C |
| November | 10°C | 15°C | 20°C |
| December | 8°C | 12°C | 15°C |
Mal. Carmona Reservoir: Water Temperature by Location
Mal. Carmona Reservoir: Weather Forecast
September 7
September 8
September 9
September 10
September 11
Location & Local Information
The reservoir known locally as Albufeira da Barragem de Mal. Carmona, in the Castelo Branco district, experiences marked seasonal variation in surface water temperature. In winter the lake commonly cools to about 6–12 °C (43–54 °F), while spring temperatures typically rise into the 12–18 °C (54–64 °F) range. Summer surface waters can warm considerably, often reaching 20–26 °C (68–79 °F) on warm days, and early autumn generally brings temperatures of roughly 14–20 °C (57–68 °F) as the lake begins to cool again. These values are approximate and depend on recent weather, wind, depth and inflow; deeper or shaded areas stay colder year-round.
Swimming at Albufeira da Barragem de Mal. Carmona is commonly practiced but is subject to local rules and conditions: some parts of the embayment are used for recreation and bathing, while other zones near dam infrastructure, intakes or steep banks are restricted for safety reasons. Water quality, operational releases, signage and municipal ordinances determine whether bathing is permitted at any given time, and lifeguards are not guaranteed. Visitors should follow posted warnings, avoid areas with strong currents or boat traffic, and consider cooler temperatures outside midsummer when cold shock and hypothermia become risks.