Sheldon Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Sheldon Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Sheldon Lake today is 74°F.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 |
|---|---|---|---|
| MAY 6 | 70°F | 75°F | |
| MAY 7 | 76°F | 75°F | |
| MAY 8 | 76°F | 75°F | |
| MAY 9 | 77°F | 75°F | |
| MAY 10 | 73°F | 75°F | |
| MAY 11 | 78°F | 75°F | |
| MAY 12 | 79°F | 75°F | |
| MAY 13 | 79°F | 75°F | |
| MAY 14 | 75°F | 74°F | |
| MAY 15 | 75°F | 74°F | |
| MAY 16 | 75°F | 74°F | |
| MAY 17 | 75°F | 74°F | |
| MAY 18 | 75°F | 75°F | |
| MAY 19 | 75°F | 75°F | |
| MAY 20 | 75°F | 75°F |
* 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 | 45°F | 56°F | 70°F |
| February | 46°F | 57°F | 70°F |
| March | 55°F | 65°F | 75°F |
| April | 55°F | 69°F | 82°F |
| May | 66°F | 75°F | 84°F |
| June | 73°F | 79°F | 84°F |
| July | 77°F | 85°F | 93°F |
| August | 77°F | 83°F | 90°F |
| September | 77°F | 82°F | 88°F |
| October | 73°F | 81°F | 88°F |
| November | 61°F | 67°F | 75°F |
| December | 50°F | 60°F | 72°F |
Sheldon Lake: Water Temperature by Location
Sheldon Lake: Weather Forecast
May 14
May 15
May 16
May 17
May 18
Location & Local Information
Sheldon Lake, an inland reservoir in southeastern Texas, experiences pronounced seasonal shifts in surface water temperature. In winter the surface typically cools to the mid‑40s to low‑60s °F (about 7–16 °C), while spring warming brings readings in the 60s to mid‑70s °F (roughly 15–24 °C). Summer surface temperatures commonly reach the upper 70s into the low‑90s °F (about 26–33 °C) on warm, sunny days, and autumn sees a gradual decline back into the 60s and 70s °F (18–26 °C). Actual temperatures vary with air temperature, wind, depth and inflow, so subsurface layers can be cooler than the surface on calm, sunny afternoons and colder during winter cold fronts.
Public swimming at Sheldon Lake is generally not permitted. The park and management emphasize wetland restoration, wildlife habitat and public safety rather than designated bathing areas, so there are no lifeguarded or officially maintained swim zones. Restrictions stem from concerns about water quality, potential submerged hazards, and the need to protect sensitive birds and aquatic ecosystems that depend on the lake. Visitors who want water recreation can typically pursue boating, paddling and fishing in permitted areas, but anyone considering contact with the lake should check current local rules and advisories before entering the water.