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John Martin Reservoir

John Martin Reservoir Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in John Martin Reservoir, 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 Lake Water Temperature Information

39°F

TODAY

39°F

YESTERDAY

39°F

A WEEK AGO

As of today, the minimum water temperature in the John Martin Reservoir ranges less than 41°F (5°C). Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters.

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 John Martin Reservoir Over the Last 30 Days

Today the water temperature in John Martin Reservoir is higher than the same day in previous years. The water temperature range here in February is from 34°F to 43°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 John Martin Reservoir 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
Feb 1639°F38°F
Feb 1740°F38°F
Feb 1840°F38°F
Feb 1940°F38°F
Feb 2040°F38°F
Feb 2140°F38°F
Feb 2239°F38°F
Feb 2339°F38°F
Feb 2438°F39°F
Feb 2538°F39°F
Feb 2638°F39°F
Feb 2738°F39°F
Feb 2838°F39°F
Mar 139°F39°F
Mar 239°F39°F
Mar 339°F39°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 John Martin Reservoir by Month

January

MinimumAverageMaximum
34°F38°F43°F

February

MinimumAverageMaximum
34°F38°F43°F

March

MinimumAverageMaximum
34°F39°F43°F

April

MinimumAverageMaximum
48°F53°F57°F

May

MinimumAverageMaximum
57°F61°F66°F

June

MinimumAverageMaximum
64°F68°F72°F

July

MinimumAverageMaximum
70°F74°F79°F

August

MinimumAverageMaximum
72°F76°F81°F

September

MinimumAverageMaximum
66°F70°F75°F

October

MinimumAverageMaximum
59°F63°F68°F

November

MinimumAverageMaximum
46°F50°F54°F

December

MinimumAverageMaximum
37°F42°F46°F

Monthly Water Temperature Histogram for John Martin Reservoir

Known Beaches in the Area of John Martin Reservoir?

John Martin Reservoir State Park

John Martin Reservoir State Park is a 3-stars sandy beach, located in a 4 km (2 miles) radius of John Martin Reservoir. There is parking. There are restrooms. John Martin Reservoir State Park is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible.

Link to the location of the beach

John Martin Reservoir Weather

FEBRUARY 23

36°F / 64°F
overcast

rain: 0% | wind: 10 mph

FEBRUARY 24

41°F / 66°F
overcast

rain: 0% | wind: 7 mph

FEBRUARY 25

45°F / 66°F
overcast

rain: 1% | wind: 17 mph

FEBRUARY 26

45°F / 66°F
overcast

rain: 3% | wind: 27 mph

Water Temperature in John Martin Reservoir: General Trends and Swimming Opportunities

John Martin Reservoir is located in the state of Colorado, in the county of Bent, at an elevation of 3795 feet (1157 meters) above sea level.

John Martin Reservoir is a medium lake. Its surface area is 18.3 sq mi (47.3 sq km). Typically versatile lakes with developed ecosystems; popular for water sports and tourism.

The water temperature in John Martin Reservoir varies throughout the year, ranging from 34°F (1°C) in January to 81°F (27°C) in August. The average annual water temperature of the lake is 55°F (13°C). The months when the average water temperature in John Martin Reservoir exceeds 68 degrees Fahrenheit (20°C) are June, July, August and September.

The nearest cities ans towns to John Martin Reservoir are: Las Animas, Lamar, La Junta in Colorado.

Geographical Location of John Martin Reservoir

Frequently Asked Questions About John Martin Reservoir and its Water Temperatures

What is the current water temperature in John Martin Reservoir?

The water temperature today in John Martin Reservoir is 39°F (3.9°C).

What is the water temperature in John Martin Reservoir during the summer months?

The average water temperature in John Martin Reservoir during the summer months is typically between 68°F to 76°F (20°C to 24°C), and it can reach up to 81°F (27°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in John Martin Reservoir in May?

The average water temperature in John Martin Reservoir in May ranges from 57°F to 66°F (14°C to 19°C).

What is the water temperature in John Martin Reservoir in September?

The average water temperature in John Martin Reservoir in September is typically between 66°F to 75°F (19°C to 24°C).

Where is John Martin Reservoir located?

John Martin Reservoir is located in the United States in the state of Colorado, in the county of Bent, at an elevation of 3795 feet (1157 meters) above sea level. The surface area of the lake is 18.259 sq mi (47.29 sq km).

Is it possible to swim in John Martin Reservoir and what are the possibilities for this?

Yes, it is possible to swim in John Martin Reservoir in Colorado. The lake offers a designated swimming area and also allows various water activities like kayaking, sailing, and fishing.

What are the coordinates of John Martin Reservoir?

John Martin Reservoir is located at coordinates 38.0710°N 103.0050°W.

Is Lake John Martin Reservoir a popular vacation spot among Americans?

John Martin Reservoir enjoys local popularity among the residents of State Colorado, and nationally, it ranks in the top 10 percent of all lakes in the country.

What species of fish can be found in John Martin Reservoir?

John Martin Reservoir is home to fish species such as Channel catfish (best caught in Spring, Summer), Largemouth bass (Spring, Fall), Sauger (Spring, Fall), Saugeye (Spring, Fall), Smallmouth bass (Spring, Fall), White bass (Spring, Summer), Walleye (Spring, Fall), Bluegill (Spring, Summer), Gar (Summer).