Columbia River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Columbia River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Columbia River today is 20.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature 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.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUL 1 | 20.8°C | 21.5°C | |
| JUL 2 | 20.7°C | 21.5°C | |
| JUL 3 | 20.8°C | 21.5°C | |
| JUL 4 | 20.9°C | 21.5°C | |
| JUL 5 | 19.5°C | 21.5°C | |
| JUL 6 | 19.4°C | 21.5°C | |
| JUL 7 | 20.2°C | 21.5°C | |
| JUL 8 | 20.0°C | 21.5°C | |
| JUL 9 | 21.5°C | 20.2°C | |
| JUL 10 | 21.5°C | 20.2°C | |
| JUL 11 | 21.5°C | 20.3°C | |
| JUL 12 | 21.5°C | 20.4°C | |
| JUL 13 | 21.5°C | 20.5°C | |
| JUL 14 | 21.5°C | 20.5°C | |
| JUL 15 | 21.5°C | 20.6°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 1°C | 5°C | 9°C |
| February | 1°C | 5°C | 9°C |
| March | 1°C | 6°C | 11°C |
| April | 4°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 11°C | 17°C | 22°C |
| July | 17°C | 22°C | 26°C |
| August | 17°C | 22°C | 26°C |
| September | 11°C | 18°C | 24°C |
| October | 8°C | 14°C | 19°C |
| November | 3°C | 8°C | 16°C |
| December | 3°C | 6°C | 8°C |
Columbia River: Water Temperature by Location
Columbia River: Weather Forecast
July 9
July 10
July 11
July 12
July 13
July 14
Location & Local Information
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.