Drews Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Drews Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Drews Reservoir today is 13°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 |
|---|---|---|---|
| OCT 5 | 12.3°C | 11.5°C | |
| OCT 6 | 12.6°C | 11.5°C | |
| OCT 7 | 12.4°C | 11.5°C | |
| OCT 8 | 12.6°C | 11.5°C | |
| OCT 9 | 12.4°C | 11.5°C | |
| OCT 10 | 12.4°C | 11.5°C | |
| OCT 11 | 13.3°C | 11.5°C | |
| OCT 12 | 13.1°C | 11.5°C | |
| OCT 13 | 11.5°C | 12.9°C | |
| OCT 14 | 11.5°C | 12.9°C | |
| OCT 15 | 11.5°C | 12.8°C | |
| OCT 16 | 11.5°C | 12.7°C | |
| OCT 17 | 11.5°C | 12.6°C | |
| OCT 18 | 11.5°C | 12.6°C | |
| OCT 19 | 11.5°C | 12.5°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 | 2°C | 4°C |
| February | 0°C | 5°C | 8°C |
| March | 0°C | 4°C | 8°C |
| April | 3°C | 8°C | 12°C |
| May | 10°C | 14°C | 19°C |
| June | 16°C | 18°C | 21°C |
| July | 16°C | 21°C | 25°C |
| August | 19°C | 22°C | 24°C |
| September | 16°C | 19°C | 23°C |
| October | 6°C | 12°C | 17°C |
| November | 2°C | 6°C | 10°C |
| December | 0°C | 3°C | 5°C |
Drews Reservoir: Water Temperature by Location
Drews Reservoir: Weather Forecast
October 13
October 14
October 15
October 16
October 17
Location & Local Information
Drews Reservoir typically follows the seasonal pattern of small Oregon reservoirs, with cool to cold water much of the year. In winter, surface temperatures commonly sit around 34–45°F (1–7°C), often near freezing at the surface during cold spells. Spring brings a steady rise, with surface readings roughly 45–60°F (7–16°C) as days lengthen and runoff warms shallow areas. Peak summer surface temperatures can reach about 60–75°F (16–24°C) in the warmest, sun-exposed shallows, though deeper parts and shaded coves remain several degrees cooler. In fall the water usually cools back toward 50–65°F (10–18°C). These are general seasonal ranges; exact temperatures vary with weather, depth, and inflow.
Swimming at Drews Reservoir is generally possible because the site is used for multiple recreational purposes, but it is not a supervised beach environment and conditions can change. Restrictions are occasionally imposed for safety, water-quality concerns, or when reservoir operations (such as irrigation releases or low levels) make access or water conditions hazardous. Even in summer, cold water shock and sudden depth changes are real risks, so swimmers should check local signage or landowner rules, enter slowly, and use flotation as needed rather than assuming lifeguards or uniformly warm water.