Sousa River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Sousa River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Sousa River today is 17.6°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 |
|---|---|---|---|
| OCT 10 | 18.4°C | 16.0°C | |
| OCT 11 | 18.1°C | 16.0°C | |
| OCT 12 | 17.9°C | 16.0°C | |
| OCT 13 | 17.2°C | 16.0°C | |
| OCT 14 | 16.8°C | 16.0°C | |
| OCT 15 | 17.0°C | 16.0°C | |
| OCT 16 | 17.2°C | 16.0°C | |
| OCT 17 | 17.6°C | 16.0°C | |
| OCT 18 | 16.0°C | 17.5°C | |
| OCT 19 | 16.0°C | 17.4°C | |
| OCT 20 | 16.0°C | 17.4°C | |
| OCT 21 | 16.0°C | 17.3°C | |
| OCT 22 | 16.0°C | 17.2°C | |
| OCT 23 | 16.0°C | 17.1°C | |
| OCT 24 | 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 | 5°C | 9°C | 11°C |
| February | 5°C | 8°C | 12°C |
| March | 8°C | 11°C | 14°C |
| April | 10°C | 14°C | 17°C |
| May | 13°C | 18°C | 22°C |
| June | 15°C | 19°C | 24°C |
| July | 17°C | 21°C | 26°C |
| August | 18°C | 22°C | 27°C |
| September | 15°C | 19°C | 24°C |
| October | 12°C | 16°C | 18°C |
| November | 9°C | 13°C | 16°C |
| December | 5°C | 9°C | 12°C |
Sousa River: Water Temperature by Location
Sousa River: Weather Forecast
October 18
October 19
October 20
October 21
October 22
Location & Local Information
The Sousa River (Rio Sousa) in the Grande Porto area typically carries cool water year-round, with seasonal variations that reflect regional climate and river size. In winter the river is usually around 8–12 °C (46–54 °F), spring temperatures rise to roughly 10–18 °C (50–64 °F) as runoff and air temperatures increase, and summer can bring the warmest conditions, often in the 16–24 °C (61–75 °F) range in sheltered reaches. Autumn temperatures generally fall back toward 12–18 °C (54–64 °F). Local microclimates, shading by vegetation, and recent rainfall can shift these values by a few degrees, and deeper or faster-flowing sections remain cooler than shallow pools.
Swimming in the Sousa is possible in many informal spots and some local people do bathe in the river, but there are few if any official lifeguarded areas or published swimming facilities. Whether swimming is advisable depends on water quality, current strength, underwater hazards, and land access: heavy rain can increase turbidity and pollution, and narrow stretches or drops can produce strong currents. Municipal signage, recent water-quality notices, and local guidance should be checked before entering the river; where conditions are safe and permitted, summer months offer the most comfortable water temperatures for a dip.