San Juan River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the San Juan River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the San Juan River today is 27.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays. 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 14 | 25.9°C | 22.9°C | |
| JUL 15 | 28.7°C | 22.9°C | |
| JUL 16 | 28.7°C | 22.9°C | |
| JUL 17 | 28.7°C | 22.9°C | |
| JUL 18 | 28.8°C | 22.9°C | |
| JUL 19 | 28.8°C | 22.9°C | |
| JUL 20 | 28.7°C | 22.9°C | |
| JUL 21 | 28.7°C | 22.9°C | |
| JUL 22 | 22.9°C | 27.4°C | |
| JUL 23 | 22.9°C | 27.1°C | |
| JUL 24 | 22.9°C | 26.9°C | |
| JUL 25 | 22.9°C | 26.7°C | |
| JUL 26 | 22.9°C | 26.4°C | |
| JUL 27 | 22.9°C | 26.2°C | |
| JUL 28 | 22.9°C | 26.0°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 | 9°C |
| February | 1°C | 5°C | 9°C |
| March | 3°C | 9°C | 16°C |
| April | 5°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 19°C | 23°C |
| July | 17°C | 23°C | 29°C |
| August | 17°C | 21°C | 23°C |
| September | 11°C | 16°C | 21°C |
| October | 8°C | 13°C | 18°C |
| November | 3°C | 8°C | 16°C |
| December | 3°C | 6°C | 10°C |
San Juan River: Water Temperature by Location
San Juan River: Weather Forecast
July 22
July 23
July 24
July 25
July 26
Location & Local Information
Source San Juan Mountains
• location Archuleta County, Colorado
• elevation 7,553 ft (2,302 m)
Mouth Colorado River (Lake Powell)
• location San Juan County, Utah
• elevation 3,704 ft (1,129 m)
Length 383 mi (616 km)
The San Juan River, flowing through the stunning red rock landscapes of Utah, is a scenic river that offers a unique blend of outdoor experiences. Its water temperature varies with the seasons, typically remaining cool due to its high desert location and the influence of upstream sources. In the warmer months, the river’s temperature can reach around 60–70°F (15–21°C), making it refreshing for swimming and other water activities. During the colder months, especially in spring and fall, temperatures can drop below 50°F (10°C), which makes the river less inviting for extended swims.
While the San Juan River is not known as a major swimming destination, it offers several areas where wading or taking a quick dip can be enjoyable, particularly in calmer sections. Many visitors use the river for recreational kayaking, rafting, or fishing, where the water's coolness adds a pleasant contrast to the often warm desert air. The river is also a favorite for float trips, where swimming can be a refreshing break between paddling. However, swimmers should be mindful of varying water levels and the river’s currents, which can shift depending on weather patterns and seasonal changes. For those in search of a tranquil dip in a unique natural setting, the San Juan River provides a peaceful opportunity to connect with the rugged beauty of the region.