Sau Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Sau Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Sau Reservoir today is 18.8°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 |
|---|---|---|---|
| JUN 3 | 18.4°C | 21.0°C | |
| JUN 4 | 18.4°C | 21.0°C | |
| JUN 5 | 18.4°C | 21.0°C | |
| JUN 6 | 18.3°C | 21.0°C | |
| JUN 7 | 18.8°C | 21.0°C | |
| JUN 8 | 18.8°C | 21.0°C | |
| JUN 10 | 18.8°C | 21.0°C | |
| JUN 11 | 21.0°C | 18.9°C | |
| JUN 12 | 21.0°C | 19.0°C | |
| JUN 13 | 21.0°C | 19.1°C | |
| JUN 14 | 21.0°C | 19.2°C | |
| JUN 15 | 21.0°C | 19.4°C | |
| JUN 16 | 21.0°C | 19.5°C | |
| JUN 17 | 21.0°C | 19.6°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 | 11°C |
| February | 4°C | 8°C | 12°C |
| March | 7°C | 11°C | 14°C |
| April | 10°C | 14°C | 18°C |
| May | 13°C | 19°C | 24°C |
| June | 16°C | 21°C | 26°C |
| July | 18°C | 23°C | 28°C |
| August | 19°C | 24°C | 29°C |
| September | 16°C | 21°C | 26°C |
| October | 12°C | 17°C | 20°C |
| November | 9°C | 13°C | 17°C |
| December | 4°C | 8°C | 11°C |
Sau Reservoir: Water Temperature by Location
Sau Reservoir: Weather Forecast
June 9
June 10
June 11
June 12
June 13
June 14
Location & Local Information
The Lake of Sau Reservoir (Pantà de Sau) in Catalonia is a mountain reservoir whose water temperature varies with the Mediterranean climate and seasonal inflows. Typical winter temperatures are cool, roughly 6–10 °C (43–50 °F), rising in spring to about 10–18 °C (50–64 °F). In summer the surface can warm to roughly 18–25 °C (64–77 °F), and on hot peaks sometimes reaches the high 20s °C (around 79–82 °F). Autumn brings a gradual cooling back toward the spring range, commonly 12–18 °C (54–64 °F). These averages depend on weather, depth, and water release from upstream, so local conditions can vary day to day.
Regarding swimming, authorities commonly restrict bathing in many inland reservoirs to protect water quality and for safety, and the Pantà de Sau has historically had limitations for recreational swimming for those same reasons. While people sometimes swim informally in calmer or less controlled spots, official rules and water-management priorities (drinking supply, boat traffic, submerged hazards) mean that designated, supervised swimming areas are generally not provided; visitors should check current local regulations before entering the water to avoid fines and ensure safety.