Lake Maurepas — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Maurepas, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Maurepas today is 25.9°C.
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 |
|---|---|---|---|
| JUN 6 | 27.1°C | 27.0°C | |
| JUN 7 | 28.1°C | 27.0°C | |
| JUN 8 | 28.1°C | 27.0°C | |
| JUN 10 | 28.2°C | 27.0°C | |
| JUN 11 | 25.5°C | 27.0°C | |
| JUN 12 | 25.8°C | 27.0°C | |
| JUN 13 | 25.9°C | 27.0°C | |
| JUN 14 | 27.0°C | 26.0°C | |
| JUN 15 | 27.0°C | 26.0°C | |
| JUN 16 | 27.0°C | 26.1°C | |
| JUN 17 | 27.0°C | 26.1°C | |
| JUN 18 | 27.0°C | 26.2°C | |
| JUN 19 | 27.0°C | 26.2°C | |
| JUN 20 | 27.0°C | 26.3°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 | 9°C | 14°C | 19°C |
| February | 8°C | 13°C | 19°C |
| March | 13°C | 17°C | 21°C |
| April | 17°C | 20°C | 24°C |
| May | 19°C | 23°C | 27°C |
| June | 24°C | 27°C | 30°C |
| July | 24°C | 27°C | 29°C |
| August | 24°C | 27°C | 29°C |
| September | 24°C | 26°C | 29°C |
| October | 23°C | 25°C | 27°C |
| November | 16°C | 20°C | 23°C |
| December | 12°C | 16°C | 19°C |
Lake Maurepas: Water Temperature by Location
Lake Maurepas: Weather Forecast
June 14
June 15
June 16
June 17
Location & Local Information
Lake Maurepas is a shallow, brackish coastal lake west of Lake Pontchartrain, so its surface temperatures follow Gulf Coast seasonal patterns and can change relatively quickly. In winter months the water commonly drops into the 50s °F (about 10–15 °C), with cold snaps pushing temperatures toward the low 50s °F (around 10 °C). Spring brings steady warming into the mid-60s to mid-70s °F (about 18–24 °C), and summer is when the lake is warmest, often reaching the upper 70s into the mid-80s °F (roughly 26–30 °C) and occasionally touching the low 90s °F (about 32 °C) during heat waves. Fall temperatures generally decline from the 70s °F (around 21–26 °C) back toward winter levels.
Swimming in Lake Maurepas is not broadly prohibited, but it is less common than in managed freshwater or beach settings because of several practical and safety concerns. The water is often murky and brackish, shoreline conditions are marshy with submerged vegetation and hazards, boat traffic and tidal flows can create risks, and local wildlife such as alligators and biting insects occur. Water quality can vary and occasional advisories may be issued, so many people prefer boating, fishing or wading in designated areas rather than open-water swimming. If choosing to swim, do so in warm months when temperatures are most comfortable and after checking current conditions and advisories.