Great Peñalara Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Great Peñalara Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Great Peñalara Lake today is 18°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 |
|---|---|---|---|
| JUN 23 | 17.7°C | 19.5°C | |
| JUN 24 | 17.5°C | 19.5°C | |
| JUN 25 | 17.5°C | 19.5°C | |
| JUN 26 | 17.6°C | 19.5°C | |
| JUN 27 | 18.2°C | 19.5°C | |
| JUN 28 | 18.2°C | 19.5°C | |
| JUN 29 | 18.3°C | 19.5°C | |
| JUN 30 | 18.3°C | 19.5°C | |
| JUL 1 | 18.0°C | 18.0°C | |
| JUL 2 | 18.0°C | 18.0°C | |
| JUL 3 | 18.0°C | 18.0°C | |
| JUL 4 | 18.0°C | 18.0°C | |
| JUL 5 | 18.0°C | 18.0°C | |
| JUL 6 | 18.0°C | 18.0°C | |
| JUL 7 | 18.0°C | 18.0°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 | 0°C | 0°C | 3°C |
| February | 0°C | 2°C | 5°C |
| March | 0°C | 3°C | 6°C |
| April | 1°C | 6°C | 12°C |
| May | 5°C | 11°C | 17°C |
| June | 13°C | 20°C | 25°C |
| July | 12°C | 18°C | 23°C |
| August | 13°C | 19°C | 24°C |
| September | 11°C | 17°C | 22°C |
| October | 5°C | 9°C | 12°C |
| November | 0°C | 5°C | 8°C |
| December | 0°C | 3°C | 6°C |
Great Peñalara Lake: Water Temperature by Location
Great Peñalara Lake: Weather Forecast
July 1
July 2
July 3
July 4
Location & Local Information
The Laguna Grande de Peñalara is a small high‑mountain glacial lake in the Sierra de Guadarrama near Madrid whose waters remain cold year‑round. Seasonal surface temperatures typically range from around 0 °C (32 °F) in winter when the lake often freezes, through spring thaw values roughly 0–6 °C (32–43 °F). In the brief summer period, on the warmest days the surface may reach about 6–12 °C (43–54 °F), though deeper water stays colder and air temperature swings can be large. By autumn the lake cools again to roughly 2–8 °C (36–46 °F) as nights grow colder and snowfall returns.
Swimming in the Laguna Grande is generally not permitted and is widely discouraged. The lake lies within the protected Peñalara natural area, where restrictions aim to preserve fragile alpine habitats and water quality; moreover, the very low water temperatures and sudden mountain weather create a significant hypothermia and safety risk even for strong swimmers. For these ecological and safety reasons visitors are advised to enjoy the scenery and hiking routes around the lake rather than entering the water.