Larto Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Larto Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Larto 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 |
|---|---|---|---|
| OCT 26 | 22.5°C | 25.0°C | |
| OCT 27 | 21.7°C | 25.0°C | |
| OCT 28 | 21.4°C | 25.0°C | |
| OCT 29 | 20.6°C | 25.0°C | |
| OCT 30 | 21.8°C | 25.0°C | |
| OCT 31 | 21.4°C | 25.0°C | |
| NOV 1 | 20.5°C | 18.0°C | |
| NOV 2 | 19.5°C | 18.0°C | |
| NOV 3 | 18.0°C | 19.4°C | |
| NOV 4 | 18.0°C | 19.4°C | |
| NOV 5 | 18.0°C | 19.3°C | |
| NOV 6 | 18.0°C | 19.2°C | |
| NOV 7 | 18.0°C | 19.1°C | |
| NOV 8 | 18.0°C | 19.1°C | |
| NOV 9 | 18.0°C | 19.0°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 | 12°C | 17°C |
| February | 6°C | 11°C | 16°C |
| March | 9°C | 14°C | 20°C |
| April | 15°C | 19°C | 23°C |
| May | 20°C | 24°C | 28°C |
| June | 25°C | 28°C | 30°C |
| July | 26°C | 31°C | 36°C |
| August | 23°C | 28°C | 33°C |
| September | 26°C | 28°C | 31°C |
| October | 21°C | 25°C | 29°C |
| November | 13°C | 18°C | 22°C |
| December | 10°C | 14°C | 18°C |
Larto Lake: Water Temperature by Location
Larto Lake: Weather Forecast
November 3
November 4
November 5
November 6
November 7
Location & Local Information
Larto Lake, like many small, shallow lakes in southern Louisiana, experiences notable seasonal swings in water temperature. In winter months (roughly December through February) surface temperatures commonly sit in the 50–60°F range (about 10–16°C). During spring (March–May) waters warm into the 60–75°F band (16–24°C) as air temperatures rise. Peak summer (June–August) heating can push surface readings into the mid-70s to low 90s°F (roughly 24–33°C) on hot, sunny days, especially in shallow coves. In autumn (September–November) temperatures generally decline from the 65–80°F range (18–27°C). Exact values vary from year to year depending on rainfall, depth, and local weather patterns, and deeper or shaded areas remain cooler than exposed shallows.
Swimming at Larto Lake is possible in areas with public access and suitable shore conditions, but it is not universally recommended everywhere around the lake. There are no standardized lifeguard services, and water quality, submerged vegetation, woody debris, boat traffic and regional wildlife (including turtles and occasionally alligators) can present hazards. Local signage, parish or state advisories, and posted water-quality reports should be consulted before entering the water. When conditions are favorable and authorities permit, recreational swimming is common in warmer months, but caution and basic water-safety precautions are important.