Aragón River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Aragón River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Aragón River today is 19.1°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 |
|---|---|---|---|
| SEP 13 | 20.7°C | 17.0°C | |
| SEP 14 | 20.0°C | 17.0°C | |
| SEP 15 | 19.9°C | 17.0°C | |
| SEP 16 | 19.8°C | 17.0°C | |
| SEP 17 | 20.1°C | 17.0°C | |
| SEP 18 | 19.9°C | 17.0°C | |
| SEP 19 | 19.7°C | 17.0°C | |
| SEP 20 | 19.2°C | 17.0°C | |
| SEP 21 | 17.0°C | 19.0°C | |
| SEP 22 | 17.0°C | 18.9°C | |
| SEP 23 | 17.0°C | 18.8°C | |
| SEP 24 | 17.0°C | 18.7°C | |
| SEP 25 | 17.0°C | 18.6°C | |
| SEP 26 | 17.0°C | 18.5°C | |
| SEP 27 | 17.0°C | 18.4°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 | 3°C | 7°C | 10°C |
| February | 4°C | 8°C | 10°C |
| March | 6°C | 9°C | 12°C |
| April | 8°C | 11°C | 15°C |
| May | 9°C | 14°C | 19°C |
| June | 12°C | 17°C | 22°C |
| July | 15°C | 20°C | 26°C |
| August | 15°C | 20°C | 26°C |
| September | 12°C | 17°C | 21°C |
| October | 10°C | 14°C | 17°C |
| November | 7°C | 10°C | 16°C |
| December | 4°C | 8°C | 10°C |
Aragón River: Water Temperature by Location
Aragón River: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
The Río Aragón, a Pyrenean tributary in Navarre, has water temperatures that vary strongly with altitude, season and flow. In winter the river is very cold, often around 0–6 °C (32–43 °F) in mountain stretches; spring temperatures commonly rise to about 4–12 °C (39–54 °F) as snowmelt continues. In summer the warmest spots—typically lower, slower reaches and sheltered pools—can reach roughly 12–22 °C (54–72 °F), while high-altitude sections remain cooler, often 8–16 °C (46–61 °F). Autumn sees a general decline to about 8–15 °C (46–59 °F). These figures are approximate and local conditions such as recent rainfall, shading, and reservoir releases can cause short-term variation.
Swimming in the Río Aragón is practiced in many informal locations and in designated bathing areas where present, especially in summer when temperatures are most comfortable. However, whether swimming is allowed depends on local rules and signage; some stretches are protected or unsafe due to strong currents, sudden depth changes and cold water that can cause hypothermia even on warm days. Water quality also varies along the course, so people are advised to use official bathing sites where monitoring and safety measures are provided and to heed local warnings about flow and water conditions.