Deer Creek Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Deer Creek Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Deer Creek Reservoir today is 21.5°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 15 | 22.9°C | 23.3°C | |
| SEP 16 | 22.2°C | 23.3°C | |
| SEP 17 | 21.0°C | 23.3°C | |
| SEP 18 | 20.9°C | 23.3°C | |
| SEP 19 | 21.6°C | 23.3°C | |
| SEP 20 | 21.7°C | 23.3°C | |
| SEP 21 | 21.7°C | 23.3°C | |
| SEP 22 | 21.5°C | 23.3°C | |
| SEP 23 | 23.3°C | 21.6°C | |
| SEP 24 | 23.3°C | 21.7°C | |
| SEP 25 | 23.3°C | 21.8°C | |
| SEP 26 | 23.3°C | 21.9°C | |
| SEP 27 | 23.3°C | 22.0°C | |
| SEP 28 | 23.3°C | 22.0°C | |
| SEP 29 | 23.3°C | 22.1°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 | 4°C | 7°C |
| February | 0°C | 4°C | 7°C |
| March | 1°C | 6°C | 10°C |
| April | 5°C | 11°C | 17°C |
| May | 12°C | 16°C | 20°C |
| June | 15°C | 19°C | 24°C |
| July | 21°C | 24°C | 28°C |
| August | 21°C | 24°C | 28°C |
| September | 21°C | 23°C | 26°C |
| October | 17°C | 20°C | 23°C |
| November | 6°C | 12°C | 17°C |
| December | 3°C | 6°C | 9°C |
Deer Creek Reservoir: Water Temperature by Location
Deer Creek Reservoir: Weather Forecast
September 23
September 24
September 25
September 26
September 27
Location & Local Information
Deer Creek Reservoir in Ohio experiences a wide range of water temperatures through the year, typical of midwestern reservoirs. In summer, surface temperatures commonly climb to about 70–80°F (21–27°C), and on hot, calm days can approach the mid‑80s°F (around 29°C). Late spring and early fall generally see cooler, more variable conditions, roughly 50–65°F (10–18°C) as the lake transitions between seasons. Winter brings much colder water—surface readings often fall to near freezing, roughly 32–39°F (0–4°C), and the lake can develop ice cover when cold snaps persist. Keep in mind that deeper water stays colder year‑round, and short‑term weather like storms or heat waves can shift numbers by several degrees.
Swimming at Deer Creek is allowed in designated swimming areas at Deer Creek State Park when the beach is officially open, primarily for safety and water‑quality reasons. The park typically posts seasonal schedules and may provide lifeguards during peak months; signage and local advisories indicate when swimming is permitted. Outside marked swimming zones or when the beach is closed, entering the water is at your own risk and may be discouraged due to boat traffic, steep drop‑offs, or poor water conditions. Cold water and rapid temperature changes also present hazards, so swimmers should heed posted rules and current conditions.