Lagoa Comprida — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lagoa Comprida, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lagoa Comprida today is 11.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used. 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 | 15.7°C | 20.0°C | |
| JUN 3 | 12.9°C | 20.0°C | |
| JUN 4 | 12.8°C | 20.0°C | |
| JUN 5 | 12.8°C | 20.0°C | |
| JUN 6 | 12.6°C | 20.0°C | |
| JUN 7 | 11.9°C | 20.0°C | |
| JUN 8 | 11.5°C | 20.0°C | |
| JUN 10 | 20.0°C | 11.8°C | |
| JUN 11 | 20.0°C | 12.3°C | |
| JUN 12 | 20.0°C | 12.7°C | |
| JUN 13 | 20.0°C | 13.1°C | |
| JUN 14 | 20.0°C | 13.6°C | |
| JUN 15 | 20.0°C | 14.0°C | |
| JUN 16 | 20.0°C | 14.4°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 | 3°C | 6°C |
| February | 1°C | 5°C | 8°C |
| March | 2°C | 6°C | 9°C |
| April | 4°C | 8°C | 12°C |
| May | 7°C | 13°C | 19°C |
| June | 11°C | 20°C | 28°C |
| July | 16°C | 21°C | 26°C |
| August | 17°C | 22°C | 27°C |
| September | 14°C | 20°C | 25°C |
| October | 8°C | 12°C | 15°C |
| November | 3°C | 7°C | 11°C |
| December | 0°C | 5°C | 9°C |
Lagoa Comprida: Water Temperature by Location
Lagoa Comprida: Weather Forecast
June 9
June 10
June 11
June 12
June 13
June 14
Location & Local Information
Lagoa Comprida, in the Guarda district and part of the high plateaus of Serra da Estrela, is typically a cold mountain lake whose temperatures reflect elevation, depth and snowmelt. Seasonal surface temperatures commonly range from about 0–4 °C (32–39 °F) in winter when ice or near‑freezing conditions can occur, 4–10 °C (39–50 °F) in spring, 10–16 °C (50–61 °F) in the warmest summer months, and roughly 6–12 °C (43–54 °F) in autumn. Deeper layers remain colder year‑round, so even in summer the water feels noticeably chilly compared with lowland lakes. Weather swings and inflows of cold meltwater also produce rapid temperature changes.
Swimming at Lagoa Comprida is possible in principle but not widely promoted. Parts of the area are within protected parkland and some stretches are influenced by dam infrastructure, so local rules, signage and seasonal restrictions may limit bathing. Practical concerns include very low water temperatures that raise the risk of cold shock and hypothermia, steep or rocky shores, and few if any lifeguards or facilities. Visitors interested in swimming should check current local guidance and be prepared for cold, potentially hazardous conditions.