Lizandro River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Lizandro River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Lizandro River today is 19.4°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 |
|---|---|---|---|
| OCT 4 | 18.5°C | 16.0°C | |
| OCT 5 | 18.7°C | 16.0°C | |
| OCT 6 | 18.9°C | 16.0°C | |
| OCT 7 | 19.8°C | 16.0°C | |
| OCT 8 | 19.3°C | 16.0°C | |
| OCT 9 | 19.4°C | 16.0°C | |
| OCT 10 | 19.5°C | 16.0°C | |
| OCT 11 | 19.4°C | 16.0°C | |
| OCT 12 | 16.0°C | 19.2°C | |
| OCT 13 | 16.0°C | 19.1°C | |
| OCT 14 | 16.0°C | 18.9°C | |
| OCT 15 | 16.0°C | 18.7°C | |
| OCT 16 | 16.0°C | 18.6°C | |
| OCT 17 | 16.0°C | 18.4°C | |
| OCT 18 | 16.0°C | 18.2°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 | 6°C | 9°C | 12°C |
| February | 6°C | 9°C | 13°C |
| March | 6°C | 10°C | 15°C |
| April | 9°C | 13°C | 18°C |
| May | 13°C | 18°C | 22°C |
| June | 17°C | 21°C | 26°C |
| July | 18°C | 23°C | 27°C |
| August | 19°C | 24°C | 28°C |
| September | 18°C | 22°C | 27°C |
| October | 12°C | 16°C | 18°C |
| November | 9°C | 13°C | 16°C |
| December | 8°C | 11°C | 15°C |
Lizandro River: Water Temperature by Location
Lizandro River: Weather Forecast
October 11
October 12
October 13
October 14
October 15
October 16
Location & Local Information
The Rio Lizandro, a small river in the Lisbon metropolitan area, typically shows notable seasonal variation in water temperature. In winter the river commonly measures around 10–15 °C (50–59 °F), rising through spring to roughly 12–18 °C (54–64 °F). Peak summer surface temperatures can reach about 18–24 °C (64–75 °F) in sheltered, slow-moving stretches, while autumn usually cools to approximately 14–20 °C (57–68 °F). Local conditions such as recent rainfall, shading from vegetation, depth and flow rate produce microclimates that make temperatures vary along its course; shallower pools warm more quickly, whereas faster sections remain cooler.
Swimming in the Rio Lizandro (Rio Lizandro) is possible in certain locations and seasons but is conditional. Municipal authorities and environmental agencies monitor bathing water quality, and designated spots or calm stretches may be used for bathing when tests indicate acceptable microbiological levels and there are no safety advisories. After heavy rains, runoff can degrade quality and strong currents or submerged hazards can create safety risks, so access may be restricted. In short, swimming is allowed in suitable areas when water quality and safety assessments permit, especially in summer, but users should heed posted signs and local guidance.