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 14.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 2 | 16.2°C | 19.5°C | |
| JUN 3 | 13.7°C | 19.5°C | |
| JUN 4 | 13.7°C | 19.5°C | |
| JUN 5 | 13.7°C | 19.5°C | |
| JUN 6 | 13.4°C | 19.5°C | |
| JUN 7 | 14.6°C | 19.5°C | |
| JUN 8 | 14.6°C | 19.5°C | |
| JUN 10 | 19.5°C | 14.8°C | |
| JUN 11 | 19.5°C | 15.1°C | |
| JUN 12 | 19.5°C | 15.3°C | |
| JUN 13 | 19.5°C | 15.6°C | |
| JUN 14 | 19.5°C | 15.8°C | |
| JUN 15 | 19.5°C | 16.1°C | |
| JUN 16 | 19.5°C | 16.3°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 | 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
June 9
June 10
June 11
June 12
June 13
June 14
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.