Lake Catherine — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Catherine, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Catherine today is 18.8°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 |
|---|---|---|---|
| OCT 13 | 18.8°C | 23.0°C | |
| OCT 14 | 18.9°C | 23.0°C | |
| OCT 15 | 19.4°C | 23.0°C | |
| OCT 16 | 19.3°C | 23.0°C | |
| OCT 17 | 20.2°C | 23.0°C | |
| OCT 18 | 20.3°C | 23.0°C | |
| OCT 19 | 19.9°C | 23.0°C | |
| OCT 20 | 19.0°C | 23.0°C | |
| OCT 21 | 23.0°C | 19.0°C | |
| OCT 22 | 23.0°C | 19.2°C | |
| OCT 23 | 23.0°C | 19.4°C | |
| OCT 24 | 23.0°C | 19.6°C | |
| OCT 25 | 23.0°C | 19.9°C | |
| OCT 26 | 23.0°C | 20.1°C | |
| OCT 27 | 23.0°C | 20.3°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 | 4°C | 9°C | 13°C |
| February | 4°C | 9°C | 14°C |
| March | 6°C | 13°C | 20°C |
| April | 12°C | 17°C | 21°C |
| May | 17°C | 21°C | 25°C |
| June | 19°C | 23°C | 28°C |
| July | 24°C | 29°C | 34°C |
| August | 24°C | 28°C | 32°C |
| September | 24°C | 28°C | 31°C |
| October | 20°C | 23°C | 26°C |
| November | 10°C | 16°C | 22°C |
| December | 6°C | 10°C | 14°C |
Lake Catherine: Water Temperature by Location
Lake Catherine: Weather Forecast
October 21
October 22
October 23
October 24
October 25
Location & Local Information
Lake Catherine, located near Hot Springs in west-central Arkansas, is a scenic reservoir on the Ouachita River known for its clear water and forested shoreline. The water temperature in Lake Catherine changes with the seasons, influenced by both the river’s flow and nearby hydroelectric operations. During winter, surface temperatures typically range from 7–10 °C (45–50 °F), making the water too cold for swimming. In spring, the lake gradually warms to about 15–21 °C (59–70 °F). By midsummer, the surface water reaches its warmest levels, averaging 25–29 °C (77–84 °F), while deeper areas stay significantly cooler. In autumn, the lake begins to cool again, dropping to around 15–20 °C (59–68 °F) before winter returns.
Swimming in Lake Catherine is officially permitted and very popular during the warmest months, from late May through early September. Designated swimming areas, such as those at Lake Catherine State Park, provide safe, well-maintained beaches with access to clear, refreshing water. The lake’s moderate size and natural surroundings create a relaxing environment for families and visitors seeking a summer retreat. Outside of the summer season, swimming becomes uncomfortable due to the cooler water and variable river flow, though Lake Catherine remains a favorite destination for fishing, boating, and hiking year-round.