Columbia River

© Steven Pavlov

Columbia River Current Water Temperature and Forecast

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

Water Temperature in Columbia River: General Trends and Swimming Opportunities

Source Columbia Lake
• location British Columbia, Canada
• elevation 2,690 ft (820 m)
Mouth Pacific Ocean, at Clatsop County, Oregon / Pacific County, Washington
Length 1,243 mi (2,000 km)

The Columbia River, flowing through the Pacific Northwest, is known for its stunning landscapes and strong currents. The water temperature in the Columbia River varies significantly depending on the season and location, but it tends to be colder in the upper reaches, where it originates in the mountains. In these areas, the water temperature can dip as low as 5°C to 10°C (41°F to 50°F), especially during the spring months when snowmelt is highest. As the river descends towards the lower stretches and the ocean, the temperature gradually increases. During the summer months, water temperatures in areas like the Columbia River Gorge can range from 15°C to 20°C (59°F to 68°F), making it more comfortable for recreational activities such as swimming.

Despite its picturesque beauty, swimming in the Columbia River can be challenging due to its strong currents, particularly in certain areas such as near dams and the river's confluence with the ocean. However, there are several calmer spots along the river where people can safely swim, particularly during the summer when water levels are lower. The areas around cities like Portland, Oregon, and Vancouver, Washington, are popular for water sports, including swimming, boating, and kayaking. These locations tend to have designated swimming areas that are safer for casual swimmers.

While swimming in the Columbia River can be refreshing, it is essential for swimmers to be aware of the river’s unpredictable currents and colder temperatures, which can pose risks, especially in the deeper sections. Water quality can also fluctuate due to industrial activity, and some areas may be affected by pollution. As a result, swimmers are advised to check local conditions and heed safety warnings when venturing into the river. Nonetheless, the Columbia River offers plenty of opportunities for water enthusiasts to enjoy the outdoors, especially in the more accessible, warmer stretches of the river.

Geographical Location of Columbia River

Frequently Asked Questions About Columbia River and its Water Temperatures