Alva River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Alva River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Alva River today is 19°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 4 | 19.7°C | 17.0°C | |
| OCT 5 | 19.9°C | 17.0°C | |
| OCT 6 | 20.1°C | 17.0°C | |
| OCT 7 | 19.8°C | 17.0°C | |
| OCT 8 | 20.0°C | 17.0°C | |
| OCT 9 | 19.2°C | 17.0°C | |
| OCT 10 | 19.0°C | 17.0°C | |
| OCT 11 | 19.0°C | 17.0°C | |
| OCT 12 | 17.0°C | 18.9°C | |
| OCT 13 | 17.0°C | 18.8°C | |
| OCT 14 | 17.0°C | 18.7°C | |
| OCT 15 | 17.0°C | 18.6°C | |
| OCT 16 | 17.0°C | 18.5°C | |
| OCT 17 | 17.0°C | 18.4°C | |
| OCT 18 | 17.0°C | 18.3°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 | 7°C | 10°C | 13°C |
| March | 8°C | 11°C | 14°C |
| April | 9°C | 13°C | 18°C |
| May | 13°C | 18°C | 22°C |
| June | 17°C | 23°C | 28°C |
| July | 19°C | 24°C | 28°C |
| August | 20°C | 25°C | 28°C |
| September | 18°C | 23°C | 27°C |
| October | 13°C | 17°C | 19°C |
| November | 9°C | 13°C | 16°C |
| December | 8°C | 11°C | 14°C |
Alva River: Water Temperature by Location
Alva River: Weather Forecast
October 11
October 12
October 13
October 14
October 15
Location & Local Information
The Rio Alva in the Coimbra district is a mountain-fed river whose water remains relatively cool year-round. Typical seasonal surface temperatures in open, slower stretches range roughly from about 6–12 °C (43–54 °F) in late autumn through winter and into early spring, rising to roughly 12–18 °C (54–64 °F) in spring and early autumn, and reaching warmer pockets of roughly 18–24 °C (64–75 °F) in sheltered pools and low-flow areas during the warmest weeks of summer. Fast-flowing, shaded reaches and sections below higher-elevation springs or spillways are generally colder than these averages, and temperatures can shift quickly after rainfall or dam releases.
Swimming in the Rio Alva is generally allowed in many of the natural pools and designated bathing spots that local communities use, but access and safety vary by location and season. Where authorities have established official bathing areas you will find water-quality checks and signage; elsewhere recreational use is permitted but subject to local restrictions and safety concerns. Risks include strong currents, sudden changes in flow from upstream releases, submerged rocks and unexpectedly cold water that can cause cold shock or hypothermia. For those reasons, swimming is best limited to marked areas or done with caution after checking local advisories and weather conditions.