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Boise

Water Temperature in Boise in Boise River: Current and Forecast

On this page, you will find comprehensive information about the water temperature in Boise in Boise 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 Boise

73°F

TODAY

74°F

YESTERDAY

73°F

A WEEK AGO

As of today, the minimum water temperature in Boise 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 Boise River in Boise Over the Last 30 Days

Today the water temperature in Boise 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 Boise 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 1573°F68°F
Jul 1673°F68°F
Jul 1773°F68°F
Jul 1873°F68°F
Jul 1974°F68°F
Jul 2074°F68°F
Jul 2174°F68°F
Jul 2273°F68°F
Jul 2368°F73°F
Jul 2468°F72°F
Jul 2568°F72°F
Jul 2668°F71°F
Jul 2768°F71°F
Jul 2868°F71°F
Jul 2968°F71°F
Jul 3068°F70°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 Boise 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 Boise River in Boise

Boise Weather

JULY 23

63°F / 93°F
overcast

rain: 4% | wind: 12 mph

JULY 24

70°F / 102°F
mainly clear

rain: 3% | wind: 10 mph

JULY 25

66°F / 100°F
mainly clear

rain: 3% | wind: 18 mph

JULY 26

64°F / 97°F
light drizzle

rain: 5% | wind: 12 mph

Water Temperature in Boise: General Trends and Swimming Opportunities

The Boise River, flowing through the city of Boise, Idaho, offers a variety of recreational activities, although swimming is generally not the most popular choice due to the river's varying conditions. During the warmer months, typically in late spring and summer, the water temperature in the Boise River can range from 60°F to 70°F (15°C to 21°C). While this temperature may feel refreshing on a hot day, the river's swift currents and the potential presence of rocks and debris make it less ideal for casual swimming.

That being said, the Boise River is a popular destination for activities such as tubing, kayaking, and paddleboarding. These activities are especially enjoyed during the summer, when the water temperature is more tolerable, and the river's flow provides a fun, natural current for tubing. For those looking to cool off, the river provides a refreshing spot, but it's best to enjoy it through these other recreational options rather than swimming.

For a more traditional swimming experience, Boise offers a number of community pools and nearby lakes where the water is calmer and more suitable for swimming. The proximity of the city to outdoor destinations also provides opportunities to visit nearby reservoirs and lakes, where water temperatures may rise to more comfortable levels for swimmers, typically around 70°F to 75°F (21°C to 24°C) in the summer months. These locations offer a safer and more enjoyable alternative for swimming enthusiasts.

Geographical Location of Boise

Frequently Asked Questions About Boise and its Water Temperatures

What is the current water temperature in Boise?

The water temperature today in Boise is 73°F (22.9°C).

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

The average water temperature in Boise 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 Boise in May?

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

What is the water temperature in Boise in September?

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

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

Yes, it is possible to swim in the Boise River in Boise. Options include Barber Park for a relaxed swim or whitewater parks for adventurous river surfing and kayaking.