Lac des Allemands — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lac des Allemands, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lac des Allemands today is 26.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays. 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 |
|---|---|---|---|
| JUL 14 | 25.6°C | 26.7°C | |
| JUL 15 | 27.7°C | 26.7°C | |
| JUL 16 | 27.7°C | 26.7°C | |
| JUL 17 | 27.5°C | 26.7°C | |
| JUL 18 | 27.8°C | 26.7°C | |
| JUL 19 | 27.7°C | 26.7°C | |
| JUL 20 | 27.9°C | 26.7°C | |
| JUL 21 | 28.1°C | 26.7°C | |
| JUL 22 | 26.7°C | 26.4°C | |
| JUL 23 | 26.7°C | 26.4°C | |
| JUL 24 | 26.7°C | 26.4°C | |
| JUL 25 | 26.7°C | 26.5°C | |
| JUL 26 | 26.7°C | 26.5°C | |
| JUL 27 | 26.7°C | 26.5°C | |
| JUL 28 | 26.7°C | 26.5°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 | 8°C | 15°C | 21°C |
| February | 7°C | 13°C | 19°C |
| March | 11°C | 16°C | 22°C |
| April | 18°C | 21°C | 24°C |
| May | 20°C | 24°C | 28°C |
| June | 23°C | 26°C | 30°C |
| July | 24°C | 27°C | 30°C |
| August | 23°C | 26°C | 28°C |
| September | 24°C | 26°C | 29°C |
| October | 22°C | 25°C | 27°C |
| November | 16°C | 20°C | 24°C |
| December | 13°C | 15°C | 18°C |
Lac des Allemands: Water Temperature by Location
Lac des Allemands: Weather Forecast
July 22
July 23
July 24
July 25
July 26
Location & Local Information
Lac des Allemands, a shallow coastal lake system in southeast Louisiana, follows the region’s warm subtropical pattern. Water temperatures typically range from about 50–60°F (10–15.5°C) in winter, rise to roughly 60–75°F (15.5–24°C) by spring, peak in summer around 75–90°F (24–32°C) in sheltered, shallow areas, and cool into the 65–80°F (18–27°C) band during autumn. Shallow bays and marshy coves warm more quickly than deeper channels, and temperatures can shift rapidly with wind, tides, and freshwater inflow. These seasonal ranges are typical for lakes connected to Louisiana’s bayou and gulf-influenced systems.
Swimming in Lac des Allemands is possible in principle because it is public water, but it is not widely managed as a formal bathing beach. Access is often informal, many shorelines are private or marshy, and boat traffic, submerged vegetation, oyster beds, and changing currents create safety hazards. Water quality can vary after heavy rain or during algal events, so local conditions and advisories matter. In short, people do swim there, but swimmers should choose safe, accessible spots, be aware of hazards, and heed any local water-quality or property restrictions.