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Water Temperature in Denver in South Platte River: Current and Forecast

On this page, you will find comprehensive information about the water temperature in Denver in South Platte 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 Denver

67°F

TODAY

67°F

YESTERDAY

67°F

A WEEK AGO

As of today, the minimum water temperature in Denver 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.

Analysis, Historical Data, and Forecast of Water Temperature

Water Temperature Chart for South Platte River in Denver Over the Last 30 Days

Today the water temperature in Denver is higher than the same day in previous years. The water temperature range here in May is from 46°F to 70°F. The water temperature has decreased over the past 7 days but has increased over the past month.

The forecasted water temperature values for Denver 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.

Table of Daily Water Temperature Data

DateCurrentAverageForecast
May 2267°F56°F
May 2367°F56°F
May 2467°F56°F
May 2567°F56°F
May 2667°F56°F
May 2767°F56°F
May 2867°F56°F
May 2967°F56°F
May 3056°F66°F
May 3156°F65°F
Jun 165°F65°F
Jun 265°F65°F
Jun 365°F65°F
Jun 465°F65°F
Jun 565°F65°F
Jun 665°F65°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 Denver by Month

January

MinimumAverageMaximum
34°F41°F48°F

February

MinimumAverageMaximum
34°F41°F48°F

March

MinimumAverageMaximum
36°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 South Platte River in Denver

Denver Weather

MAY 29

50°F / 70°F
moderate rain

rain: 59% | wind: 10 mph

MAY 30

57°F / 86°F
light drizzle

rain: 50% | wind: 16 mph

MAY 31

57°F / 82°F
slight rain

rain: 30% | wind: 17 mph

JUNE 1

61°F / 90°F
moderate drizzle

rain: 18% | wind: 12 mph

JUNE 2

61°F / 77°F
light drizzle

rain: 39% | wind: 17 mph

Water Temperature in Denver: General Trends and Swimming Opportunities

Denver, Colorado, is located along the South Platte River, which provides a beautiful setting for a variety of outdoor activities. However, the water temperature in the river is typically too cold for swimming, especially when compared to more tropical destinations. During the summer months, the water temperature in the South Platte River generally ranges between 50°F (10°C) and 65°F (18°C), depending on the weather and snowmelt. Even at its warmest, the water remains relatively chilly, making it more suitable for activities like fishing, kayaking, and rafting rather than leisurely swimming.

As the river flows through urban and rural areas, the South Platte River can experience fluctuations in temperature due to factors such as seasonal changes and the release of water from reservoirs. During the spring and early summer, when snowmelt is at its peak, the water can be even colder, often dipping below 50°F (10°C). These colder temperatures, combined with the river’s swift currents, pose a safety risk for swimmers, and the strong flow of water makes it less inviting for casual swimming.

For a more enjoyable swimming experience, many residents and visitors to Denver choose public pools or nearby lakes. Denver's public pools typically maintain water temperatures between 78°F (26°C) and 82°F (28°C), providing a more comfortable environment for swimming, especially during the summer months. Additionally, nearby lakes like Cherry Creek Reservoir or Chatfield Reservoir offer warmer water temperatures, often ranging from 65°F (18°C) to 75°F (24°C) in the summer, making them better alternatives for swimming, boating, and other water activities.

Geographical Location of Denver

Frequently Asked Questions About Denver and its Water Temperatures

What is the current water temperature in Denver?

The water temperature today in Denver is 67°F (19.5°C).

What is the water temperature in Denver during the summer months?

The average water temperature in Denver 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 Denver in May?

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

What is the water temperature in Denver in September?

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

Is it possible to swim in the South Platte River in Denver, and what are the available options for doing so?

Yes, it's possible to swim in the South Platte River in Denver. Options available include urban swimming at Confluence Park or exploring swimming spots at various points along the river.