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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

44°F

TODAY

44°F

YESTERDAY

46°F

A WEEK AGO

As of today, the minimum water temperature in Denver ranges from 41°F (5°C) to 47°F (8°C). This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold.

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 March is from 36°F to 52°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
Mar 2146°F44°F
Mar 2245°F44°F
Mar 2345°F44°F
Mar 2446°F44°F
Mar 2547°F44°F
Mar 2644°F44°F
Mar 2744°F44°F
Mar 2844°F44°F
Mar 2944°F44°F
Mar 3044°F44°F
Mar 3144°F44°F
Apr 150°F44°F
Apr 250°F45°F
Apr 350°F45°F
Apr 450°F45°F
Apr 550°F46°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

MARCH 29

46°F / 73°F
light drizzle

rain: 63% | wind: 16 mph

MARCH 30

37°F / 52°F
slight snow shower

rain: 80% | wind: 14 mph

MARCH 31

39°F / 63°F
moderate drizzle

rain: 34% | wind: 8 mph

APRIL 1

46°F / 61°F
overcast

rain: 47% | wind: 29 mph

APRIL 2

39°F / 66°F
overcast

rain: 47% | wind: 32 mph

APRIL 3

54°F / 66°F
overcast

rain: 21% | 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 44°F (6.6°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.