Praia de Negrões — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Praia de Negrões, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Praia de Negrões today is 17.5°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 |
|---|---|---|---|
| SEP 14 | 18.8°C | 16.0°C | |
| SEP 15 | 19.4°C | 16.0°C | |
| SEP 16 | 19.6°C | 16.0°C | |
| SEP 17 | 19.7°C | 16.0°C | |
| SEP 18 | 19.5°C | 16.0°C | |
| SEP 19 | 17.9°C | 16.0°C | |
| SEP 20 | 17.5°C | 16.0°C | |
| SEP 22 | 16.0°C | 17.4°C | |
| SEP 23 | 16.0°C | 17.4°C | |
| SEP 24 | 16.0°C | 17.3°C | |
| SEP 25 | 16.0°C | 17.2°C | |
| SEP 26 | 16.0°C | 17.1°C | |
| SEP 27 | 16.0°C | 17.1°C | |
| SEP 28 | 16.0°C | 17.0°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 | 1°C | 5°C | 8°C |
| February | 1°C | 5°C | 8°C |
| March | 4°C | 8°C | 10°C |
| April | 7°C | 10°C | 14°C |
| May | 9°C | 14°C | 18°C |
| June | 11°C | 16°C | 20°C |
| July | 13°C | 18°C | 22°C |
| August | 14°C | 18°C | 23°C |
| September | 11°C | 16°C | 20°C |
| October | 9°C | 12°C | 15°C |
| November | 5°C | 9°C | 12°C |
| December | 1°C | 5°C | 8°C |
Praia de Negrões: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Praia de Negrões, a small inland beach in the Vila Real district, sits beside a calm freshwater lake and experiences marked seasonal variation in water temperature. In spring surface temperatures typically range from about 12–16 °C (54–61 °F), rising in summer to roughly 20–24 °C (68–75 °F) at their warmest. Autumn sees a return to cooler values around 14–18 °C (57–64 °F), while winter surface readings commonly fall to roughly 6–10 °C (43–50 °F). These are typical surface temperatures for a northern Portuguese reservoir or river-lake in the region; actual values can fluctuate with weather, recent rainfall and depth.
Swimming is generally allowed at Praia de Negrões because it functions as a designated freshwater bathing area, and local authorities often monitor water quality during the official bathing season (commonly June–September). That said, permissions and safety provisions vary: lifeguards may not be present year-round, and temporary restrictions can be imposed for pollution, algal blooms, or low visibility. Visitors should heed on-site signage and municipal guidance. Even when swimming is permitted, caution is advised because inland lakes can have sudden depth changes, submerged obstacles and cooler deep water.