Clinton Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Clinton Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Clinton Reservoir today is 20.5°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 |
|---|---|---|---|
| SEP 14 | 20.4°C | 23.0°C | |
| SEP 15 | 20.8°C | 23.0°C | |
| SEP 16 | 20.7°C | 23.0°C | |
| SEP 17 | 19.0°C | 23.0°C | |
| SEP 18 | 19.2°C | 23.0°C | |
| SEP 19 | 19.5°C | 23.0°C | |
| SEP 20 | 20.8°C | 23.0°C | |
| SEP 21 | 20.5°C | 23.0°C | |
| SEP 22 | 23.0°C | 20.6°C | |
| SEP 23 | 23.0°C | 20.8°C | |
| SEP 24 | 23.0°C | 20.9°C | |
| SEP 25 | 23.0°C | 21.0°C | |
| SEP 26 | 23.0°C | 21.1°C | |
| SEP 27 | 23.0°C | 21.3°C | |
| SEP 28 | 23.0°C | 21.4°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 | 5°C |
| February | 0°C | 1°C | 4°C |
| March | 0°C | 4°C | 8°C |
| April | 4°C | 9°C | 15°C |
| May | 11°C | 15°C | 20°C |
| June | 16°C | 19°C | 23°C |
| July | 21°C | 26°C | 30°C |
| August | 22°C | 26°C | 29°C |
| September | 19°C | 23°C | 27°C |
| October | 12°C | 16°C | 19°C |
| November | 6°C | 9°C | 12°C |
| December | 1°C | 4°C | 8°C |
Clinton Reservoir: Water Temperature by Location
Clinton Reservoir: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
Clinton Reservoir’s surface water follows the seasonal rhythm typical of mid-Atlantic reservoirs. During winter months surface temperatures commonly hover near freezing, about 32–40°F (0–4°C). In spring the water warms into the 40–60°F range (4–16°C) as runoff and air temperatures rise. Peak summer surface temperatures often reach roughly 65–75°F (18–24°C), though deeper layers remain substantially cooler because of thermal stratification. By fall the surface cools back into the 50–65°F range (10–18°C) as air temperatures descend and the lake mixes.
Swimming at Clinton Reservoir is generally not allowed because the impoundment functions as part of the regional water supply and public-health and safety rules restrict direct human contact to protect source-water quality. In addition, reservoir conditions—sudden drop-offs, cold deeper water and limited lifeguard cover—create safety hazards that lead managers to prohibit open swimming. Recreational use and specific permitted activities vary by agency, so contact the managing authority for current rules, permitted uses and any seasonal exceptions.