Guadarrama River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Guadarrama River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Guadarrama River today is 25.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 |
|---|---|---|---|
| JUL 15 | 25.0°C | 20.6°C | |
| JUL 16 | 25.0°C | 20.6°C | |
| JUL 17 | 24.8°C | 20.6°C | |
| JUL 18 | 24.8°C | 20.6°C | |
| JUL 19 | 24.8°C | 20.6°C | |
| JUL 20 | 24.8°C | 20.6°C | |
| JUL 21 | 25.1°C | 20.6°C | |
| JUL 23 | 20.6°C | 24.9°C | |
| JUL 24 | 20.6°C | 24.7°C | |
| JUL 25 | 20.6°C | 24.4°C | |
| JUL 26 | 20.6°C | 24.2°C | |
| JUL 27 | 20.6°C | 24.0°C | |
| JUL 28 | 20.6°C | 23.8°C | |
| JUL 29 | 20.6°C | 23.5°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 | 1°C | 5°C | 8°C |
| February | 3°C | 7°C | 9°C |
| March | 4°C | 8°C | 10°C |
| April | 6°C | 11°C | 16°C |
| May | 9°C | 15°C | 21°C |
| June | 17°C | 23°C | 27°C |
| July | 16°C | 21°C | 26°C |
| August | 17°C | 21°C | 26°C |
| September | 15°C | 19°C | 24°C |
| October | 9°C | 13°C | 16°C |
| November | 5°C | 9°C | 12°C |
| December | 4°C | 8°C | 10°C |
Guadarrama River: Water Temperature by Location
Guadarrama River: Weather Forecast
July 23
July 24
July 25
July 26
July 27
Location & Local Information
Source:
• location Siete Picos (Sierra de Guadarrama)
• elevation 1,900 m (6,200 ft)
Mouth:
• location Tagus
• elevation 500 m (1,600 ft)
Length 131.80 km (81.90 mi)
The Río Guadarrama, rising in the Sierra de Guadarrama and flowing through the Madrid region, tends to be cool year-round because of its mountain sources and shaded valleys. Seasonal water temperatures typically range from about 2–8 °C (36–46 °F) in winter, through roughly 8–14 °C (46–57 °F) in spring, rising to approximately 14–22 °C (57–72 °F) in the warmest summer months in sheltered or shallow stretches, and then falling back to around 8–15 °C (46–59 °F) in autumn. Local conditions such as rainfall, snowmelt, depth, and flow speed can produce significant short-term variations, so temperatures at a particular spot may be noticeably cooler or warmer than the regional averages.
Swimming in the Guadarrama is possible in many calmer, accessible sections during the warmer months, but it is not universally permitted or advisable everywhere. Some stretches pass through protected natural areas or private land where bathing is restricted, and water quality or strong currents can make swimming unsafe in places. Even in summer, the river’s relatively low temperatures increase the risk of cold shock and hypothermia if one stays in the water too long. Visitors should follow local signage and regulations, choose designated bathing spots when available, and take standard water-safety precautions.