Deep Creek Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Deep Creek Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Deep Creek Lake today is 19.5°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 | 20.5°C | 23.0°C | |
| SEP 15 | 20.4°C | 23.0°C | |
| SEP 16 | 20.3°C | 23.0°C | |
| SEP 17 | 19.5°C | 23.0°C | |
| SEP 18 | 20.2°C | 23.0°C | |
| SEP 19 | 19.9°C | 23.0°C | |
| SEP 20 | 20.2°C | 23.0°C | |
| SEP 21 | 19.5°C | 23.0°C | |
| SEP 22 | 23.0°C | 19.7°C | |
| SEP 23 | 23.0°C | 19.9°C | |
| SEP 24 | 23.0°C | 20.0°C | |
| SEP 25 | 23.0°C | 20.2°C | |
| SEP 26 | 23.0°C | 20.4°C | |
| SEP 27 | 23.0°C | 20.6°C | |
| SEP 28 | 23.0°C | 20.7°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 | 6°C |
| February | 0°C | 4°C | 7°C |
| March | 1°C | 5°C | 9°C |
| April | 5°C | 9°C | 14°C |
| May | 10°C | 14°C | 18°C |
| June | 15°C | 19°C | 23°C |
| July | 18°C | 23°C | 26°C |
| August | 19°C | 23°C | 26°C |
| September | 20°C | 23°C | 26°C |
| October | 16°C | 20°C | 23°C |
| November | 5°C | 11°C | 16°C |
| December | 1°C | 5°C | 8°C |
Deep Creek Lake: Water Temperature by Location
Deep Creek Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Deep Creek Lake in western Maryland exhibits pronounced seasonal swings in surface water temperature. In winter the lake commonly drops to near freezing, roughly 32–40°F (0–4°C), and can ice over in sustained cold periods. Spring sees a gradual rise, with surface temperatures typically in the 40–60°F range (4–16°C) as the water mixes and warms. By summer the upper layer often reaches comfortable levels for bathing, commonly 70–80°F (21–27°C) and occasionally climbing into the mid‑80s°F (around 29°C) on hot, calm days. Autumn brings a steady cooling through the 50s and 40s°F (10–9°C down toward 4–9°C) as the season progresses. Deeper parts of the reservoir remain notably colder year‑round due to thermal stratification.
Swimming at Deep Creek Lake is generally allowed and is most common during the warm months when surface temperatures are pleasant. Public beaches and designated swimming areas open seasonally and are preferred for safety, because cold water, sudden weather changes, boat traffic, and underwater hazards can increase risk outside those zones. In winter, ice and frigid water present hypothermia and drowning hazards, so swimming is unsafe and discouraged until conditions and official advisories indicate otherwise.