Lake Celilo — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Celilo, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Celilo today is 20.7°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 |
|---|---|---|---|
| AUG 24 | 20.2°C | 24.5°C | |
| AUG 25 | 20.2°C | 24.5°C | |
| AUG 26 | 20.1°C | 24.5°C | |
| AUG 27 | 20.1°C | 24.5°C | |
| AUG 28 | 22.1°C | 24.5°C | |
| AUG 29 | 21.4°C | 24.5°C | |
| AUG 30 | 21.4°C | 24.5°C | |
| AUG 31 | 21.0°C | 24.5°C | |
| SEP 1 | 22.0°C | 20.8°C | |
| SEP 2 | 22.0°C | 20.8°C | |
| SEP 3 | 22.0°C | 20.9°C | |
| SEP 4 | 22.0°C | 21.0°C | |
| SEP 5 | 22.0°C | 21.0°C | |
| SEP 6 | 22.0°C | 21.1°C | |
| SEP 7 | 22.0°C | 21.2°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 | 0°C | 3°C | 7°C |
| February | 2°C | 5°C | 8°C |
| March | 3°C | 7°C | 11°C |
| April | 7°C | 11°C | 15°C |
| May | 12°C | 17°C | 21°C |
| June | 15°C | 20°C | 24°C |
| July | 17°C | 24°C | 31°C |
| August | 19°C | 25°C | 30°C |
| September | 18°C | 22°C | 26°C |
| October | 11°C | 16°C | 20°C |
| November | 7°C | 11°C | 14°C |
| December | 4°C | 7°C | 11°C |
Lake Celilo: Water Temperature by Location
Lake Celilo: Weather Forecast
September 1
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September 3
September 4
September 5
September 6
Location & Local Information
Lake Celilo, part of the Columbia River corridor in Oregon, experiences a wide range of water temperatures through the year. Surface temperatures in winter commonly sit near the mid-30s to mid-40s °F (about 2–7 °C), while spring warming pushes surface water into the mid-40s to low-60s °F (roughly 7–16 °C). In the warmest months, sheltered shallows can reach the mid-60s to mid-70s °F (around 18–24 °C), though the main channel often stays cooler. Come autumn, temperatures usually fall back into the 50s–60s °F range (10–18 °C). Actual temperatures vary by depth, wind, river inflows and seasonal weather, so localized spots can be noticeably warmer or colder than these averages.
Swimming is possible in parts of Lake Celilo, but whether it is allowed or advisable depends on location and conditions. Some shoreline areas and calm bays are used for recreation, but proximity to river infrastructure, strong currents, boat traffic and submerged hazards make other sections unsafe or restricted. Cold water, even in summer, raises the risk of cold-water shock and hypothermia, and authorities may post closures for safety or water-quality reasons. Visitors should follow posted rules and common-sense precautions when considering swimming.