Sil River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Sil River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Sil 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 |
|---|---|---|---|
| SEP 19 | 19.6°C | 17.0°C | |
| SEP 20 | 19.3°C | 17.0°C | |
| SEP 21 | 18.6°C | 17.0°C | |
| SEP 22 | 18.5°C | 17.0°C | |
| SEP 23 | 19.3°C | 17.0°C | |
| SEP 24 | 19.5°C | 17.0°C | |
| SEP 25 | 19.2°C | 17.0°C | |
| SEP 26 | 18.8°C | 17.0°C | |
| SEP 27 | 17.0°C | 18.8°C | |
| SEP 28 | 17.0°C | 18.5°C | |
| SEP 29 | 17.0°C | 18.3°C | |
| SEP 30 | 17.0°C | 18.0°C | |
| OCT 1 | 14.0°C | 17.8°C | |
| OCT 2 | 14.0°C | 17.5°C | |
| OCT 3 | 14.0°C | 17.3°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 | 4°C | 8°C | 10°C |
| February | 4°C | 8°C | 10°C |
| March | 6°C | 9°C | 12°C |
| April | 8°C | 12°C | 16°C |
| May | 9°C | 14°C | 19°C |
| June | 12°C | 17°C | 21°C |
| July | 15°C | 19°C | 24°C |
| August | 15°C | 19°C | 24°C |
| September | 12°C | 17°C | 21°C |
| October | 10°C | 14°C | 17°C |
| November | 7°C | 10°C | 13°C |
| December | 4°C | 8°C | 12°C |
Sil River: Water Temperature by Location
Sil River: Weather Forecast
September 27
September 28
September 29
September 30
October 1
Location & Local Information
Source La Cueta, Cabrillanes
• location León, Castilla y León, Spain
• coordinates 43.031615°N 6.155348°W
Mouth Miño Estuary
• location Atlantic Ocean, Spain
• elevation 0 m (0 ft)
Length 228 km (142 mi)
The Río Sil, a major tributary of the Miño flowing through Galicia’s Ribeira Sacra, has water temperatures that vary noticeably with the seasons. In winter the river’s surface commonly sits around 5–10 °C (41–50 °F), rising in spring to roughly 8–15 °C (46–59 °F). During summer the warmest stretches and reservoirs can reach about 18–24 °C (64–75 °F), while autumn temperatures generally fall back to roughly 12–18 °C (54–64 °F). Local factors such as depth, flow rate, shading by cliffs and vegetation, and reservoir stratification influence these figures, so temperatures can differ significantly between narrow canyons and wider impoundments.
Swimming in the Río Sil is permitted in many calm stretches and designated bathing spots, especially in summer when temperatures are most comfortable. However, access is limited or discouraged in areas near dams, strong currents, steep banks or where water quality is poor; some sections lie within protected landscapes with specific rules. For safety and health reasons visitors should follow local signage, heed municipal regulations and check recent water-quality or bathing advisories before entering the river, as conditions can change with rainfall, season and upstream activities.