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San Juan River

San Juan River Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in San Juan River, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Water Temperature in San Juan River

67°F

TODAY

67°F

YESTERDAY

67°F

A WEEK AGO

As of today, the minimum water temperature in the San Juan River ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.

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.

Analysis, Historical Data, and Forecast of Water Temperature

Water Temperature Chart for San Juan River Over the Last 30 Days

Today the water temperature in San Juan River is higher than the same day in previous years. The water temperature range here in June is from 57°F to 72°F. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.

The forecasted water temperature values for San Juan River are presented in the table below.

The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.

Daily Water Temperature Chart

DateCurrentAverageForecast
Jun 1167°F65°F
Jun 1267°F65°F
Jun 1367°F65°F
Jun 1465°F65°F
Jun 1566°F65°F
Jun 1666°F65°F
Jun 1767°F65°F
Jun 1867°F65°F
Jun 1965°F67°F
Jun 2065°F67°F
Jun 2165°F67°F
Jun 2265°F67°F
Jun 2365°F67°F
Jun 2465°F67°F
Jun 2565°F67°F
Jun 2665°F67°F
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Water Temperature Ranges in San Juan River by Month

January

MinimumAverageMaximum
34°F41°F48°F

February

MinimumAverageMaximum
34°F41°F48°F

March

MinimumAverageMaximum
37°F44°F52°F

April

MinimumAverageMaximum
41°F50°F61°F

May

MinimumAverageMaximum
46°F56°F70°F

June

MinimumAverageMaximum
57°F65°F72°F

July

MinimumAverageMaximum
63°F68°F75°F

August

MinimumAverageMaximum
63°F71°F73°F

September

MinimumAverageMaximum
52°F64°F66°F

October

MinimumAverageMaximum
46°F56°F61°F

November

MinimumAverageMaximum
37°F47°F61°F

December

MinimumAverageMaximum
37°F40°F46°F

Monthly Water Temperature Histogram for San Juan River

Water Temperature in Cities and Towns on San Juan River

Pagosa Springs
United States (Colorado)
60°F
Silverton
United States (Colorado)
54°F
Farmington
United States (New Mexico)
63°F

San Juan River Weather

JUNE 19

70°F / 100°F
clear sky

rain: 0% | wind: 21 mph

JUNE 20

75°F / 100°F
clear sky

rain: 1% | wind: 26 mph

JUNE 21

72°F / 99°F
clear sky

rain: 1% | wind: 28 mph

JUNE 22

70°F / 95°F
clear sky

rain: 3% | wind: 27 mph

JUNE 23

68°F / 88°F
partly cloudy

rain: 5% | wind: 22 mph

Water Temperature in San Juan River: General Trends and Swimming Opportunities

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.

Geographical Location of San Juan River

Nearby Rivers

Frequently Asked Questions About San Juan River and its Water Temperatures

What is the current water temperature in San Juan River?

The water temperature today in San Juan River ranges from 54°F (12.0°C) to 63°F (17.3°C).

What is the water temperature in San Juan River during the summer months?

The average water temperature in San Juan River during the summer months is typically between 65°F to 71°F (19°C to 21°C), and it can reach up to 75°F (24°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in San Juan River in May?

The average water temperature in San Juan River in May ranges from 46°F to 70°F (8°C to 21°C).

What is the water temperature in San Juan River in September?

The average water temperature in San Juan River in September is typically between 52°F to 66°F (11°C to 19°C).

Where does San Juan River flow?

San Juan River flows through United States (Utah, Colorado, New Mexico).

Is it possible to swim in the San Juan River?

Yes, it is possible to swim in the San Juan River. However, water safety considerations such as current and water quality should always be taken into account.