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 17.2°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 |
|---|---|---|---|
| JUN 23 | 20.1°C | 18.3°C | |
| JUN 24 | 20.5°C | 18.3°C | |
| JUN 25 | 20.5°C | 18.3°C | |
| JUN 26 | 20.4°C | 18.3°C | |
| JUN 27 | 20.2°C | 18.3°C | |
| JUN 28 | 20.5°C | 18.3°C | |
| JUN 29 | 20.4°C | 18.3°C | |
| JUN 30 | 19.0°C | 18.3°C | |
| JUL 1 | 20.5°C | 17.4°C | |
| JUL 2 | 20.5°C | 17.5°C | |
| JUL 3 | 20.5°C | 17.7°C | |
| JUL 4 | 20.5°C | 17.9°C | |
| JUL 5 | 20.5°C | 18.0°C | |
| JUL 6 | 20.5°C | 18.2°C | |
| JUL 7 | 20.5°C | 18.4°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 | 21°C | 24°C |
| September | 16°C | 19°C | 22°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
July 1
July 2
July 3
July 4
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.