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Sioux Falls

Water Temperature in Sioux Falls in Big Sioux River: Current and Forecast

On this page, you will find comprehensive information about the water temperature in Sioux Falls in Big Sioux 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 Sioux Falls

70°F

TODAY

69°F

YESTERDAY

73°F

A WEEK AGO

As of today, the minimum water temperature in Sioux Falls ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience.

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 Big Sioux River in Sioux Falls Over the Last 30 Days

Today the water temperature in Sioux Falls is higher than the same day in previous years. The water temperature range here in July is from 63°F to 75°F. The water temperature has decreased over the past 7 days but has increased over the past month.

The forecasted water temperature values for Sioux Falls 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
Jul 173°F68°F
Jul 273°F68°F
Jul 370°F68°F
Jul 469°F68°F
Jul 569°F68°F
Jul 669°F68°F
Jul 769°F68°F
Jul 870°F68°F
Jul 968°F70°F
Jul 1068°F70°F
Jul 1168°F70°F
Jul 1268°F69°F
Jul 1368°F69°F
Jul 1468°F69°F
Jul 1568°F69°F
Jul 1668°F69°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 Sioux Falls by Month

January

MinimumAverageMaximum
32°F40°F48°F

February

MinimumAverageMaximum
32°F40°F48°F

March

MinimumAverageMaximum
32°F42°F52°F

April

MinimumAverageMaximum
39°F50°F61°F

May

MinimumAverageMaximum
46°F56°F70°F

June

MinimumAverageMaximum
57°F65°F73°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 Big Sioux River in Sioux Falls

Sioux Falls Weather

JULY 8

61°F / 82°F
moderate rain

rain: 45% | wind: 10 mph

JULY 9

61°F / 82°F
partly cloudy

rain: 3% | wind: 14 mph

JULY 10

63°F / 84°F
moderate rain showers

rain: 17% | wind: 14 mph

JULY 11

66°F / 84°F
light drizzle

rain: 49% | wind: 11 mph

JULY 12

59°F / 81°F
light drizzle

rain: 17% | wind: 17 mph

JULY 13

57°F / 84°F
partly cloudy

rain: 8% | wind: 10 mph

Water Temperature in Sioux Falls: General Trends and Swimming Opportunities

In Sioux Falls, South Dakota, the Big Sioux River runs through the city and serves as a key natural feature for recreation. During the summer months, the water temperature in the Big Sioux River typically ranges from 70°F to 80°F (21°C to 27°C), making it reasonably comfortable for activities like wading or kayaking. While it is not as warm as rivers in southern states, the temperatures are still pleasant enough for short swims and other water activities, particularly on hot summer days.

However, swimming in the Big Sioux River itself is not always recommended due to varying water conditions. The river can experience strong currents and varying water depths, especially in areas near the falls or during periods of heavy rainfall. These conditions make swimming potentially dangerous for those who are not experienced or unaware of the changing water levels. It is important to check water conditions before entering, and it's advisable to swim only in designated, safer areas.

For those seeking water recreation, Sioux Falls offers several designated parks and recreational areas along the Big Sioux River, such as Falls Park. These areas provide opportunities for picnicking, relaxing by the river, and enjoying the scenic beauty of the riverbanks. Though swimming may not be the most common activity, kayaking, canoeing, and tubing are popular options, allowing visitors to enjoy the river’s waters in a controlled manner. Overall, while the Big Sioux River in Sioux Falls offers various outdoor activities, swimming should be approached with caution, and visitors are encouraged to explore safer, designated areas.

Geographical Location of Sioux Falls

Frequently Asked Questions About Sioux Falls and its Water Temperatures

What is the current water temperature in Sioux Falls?

The water temperature today in Sioux Falls is 70°F (21.2°C).

What is the water temperature in Sioux Falls during the summer months?

The average water temperature in Sioux Falls 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 Sioux Falls in May?

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

What is the water temperature in Sioux Falls in September?

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

Is it possible to swim in the Big Sioux River in Sioux Falls, and what are the available options for doing so?

Yes, it is possible to swim in the Big Sioux River in Sioux Falls, primarily at spots like Falls Park and Wildwood Park. However, pay heed to city ordinances and be aware of potential risks & water quality.