Louisiana Water Temperatures
Current lake & river temperatures in Louisiana — updated daily from USGS sensors.
Louisiana — Ranked by Temperature
26 with data| # | Water Body | °F | °C | Condition | 🏊 | Date |
|---|---|---|---|---|---|---|
| 1 | Bayou Lafourche At Lockport, La Lake | 90.7° | 32.6° | 🔥 Hot | 🏊 Excellent | Jul 27 |
| 2 | Company Canal At Hwy 1 At Lockport, La River | 90.7° | 32.6° | 🔥 Hot | 🏊 Excellent | Jul 27 |
| 3 | Barataria Waterway At Mud Lake S Of Lafitte, La Lake | 90.1° | 32.3° | 🔥 Hot | 🏊 Excellent | Jul 27 |
| 4 | L. Cataouatche At Whiskey Canal S Of Waggaman, La Lake | 90° | 32.2° | 🔥 Hot | 🏊 Excellent | Jul 27 |
| 5 | Company Canal At Salt Barrier Near Lockport, La River | 89.8° | 32.1° | 🔥 Hot | 🏊 Excellent | Jul 27 |
| 6 | Caillou Lake (Sister Lake) Sw Of Dulac, La Lake | 89.2° | 31.8° | 🔥 Hot | 🏊 Excellent | Jul 27 |
| 7 | Barataria Bay Near Grand Terre Island, La Lake | 89.2° | 31.8° | 🔥 Hot | 🏊 Excellent | Jul 27 |
| 8 | Mississippi River At Baton Rouge, La River | 88.2° | 31.2° | 🔥 Hot | 🏊 Excellent | Jul 27 |
| 9 | North Calcasieu Lake Near Hackberry, La Lake | 88° | 31.1° | 🔥 Hot | 🏊 Excellent | Jul 27 |
| 10 | Little Lake Near Bay Dosgris E Of Galliano, La Lake | 88° | 31.1° | 🔥 Hot | 🏊 Excellent | Jul 27 |
| 11 | Vermilion Bay Near Cypremort Point, La Lake | 87.6° | 30.9° | 🔥 Hot | 🏊 Excellent | Jul 27 |
| 12 | Caernarvon Outfall Channel At Caernarvon, La Lake | 87.4° | 30.8° | 🔥 Hot | 🏊 Excellent | Jul 26 |
| 13 | Calcasieu River At I-10 At Lake Charles, La River | 87.4° | 30.8° | 🔥 Hot | 🏊 Excellent | Jul 27 |
| 14 | Reggio Canal Near Wills Point, La River | 85.6° | 29.8° | 🔥 Hot | 🏊 Excellent | Jul 7 |
| 15 | Barataria Bay N Of Grand Isle, La Lake | 83.5° | 28.6° | ☀️ Warm | 🏊 Excellent | Aug 28 |
| 16 | Bayou Francois At Hwy 61 Near Gonzales, La Lake | 83.3° | 28.5° | ☀️ Warm | 🏊 Excellent | Sep 29 |
| 17 | Barataria Pass At Grand Isle, La Lake | 81.9° | 27.7° | ☀️ Warm | 🏊 Excellent | May 17 |
| 18 | Bayou Boeuf At Railroad Bridge At Amelia, La Lake | 80.6° | 27° | ☀️ Warm | 🏊 Excellent | May 12 |
| 19 | Mermentau River At Mermentau, La River | 80.2° | 26.8° | ☀️ Warm | 🏊 Excellent | Sep 29 |
| 20 | Crms2166-H01-Rt Lake | 79.2° | 26.2° | ☀️ Warm | ✅ Good | May 18 |
| 21 | Davis Pond Freshwater Diversion Near Boutte, La Lake | 74.1° | 23.4° | 🌤️ Comfortable | ✅ Good | Oct 23 |
| 22 | Giww West Of Bayou Lafourche At Larose, La Lake | 74.1° | 23.4° | 🌤️ Comfortable | ✅ Good | Oct 23 |
| 23 | Little Bayou Long North Of Duck Lake, La Lake | 71.6° | 22° | 🌤️ Comfortable | ⚠️ Brisk | Nov 4 |
| 24 | Middle Fork Bayou Long At Bayou Long Lake | 71.2° | 21.8° | 🌤️ Comfortable | ⚠️ Brisk | Nov 3 |
| 25 | Bayou Bartholomew At Hwy 425 Nr Beekman, La Lake | 68.5° | 20.3° | 🌤️ Comfortable | ⚠️ Brisk | Oct 15 |
More Louisiana Resources
❓ Louisiana Water Temperature FAQ
What is the warmest lake in Louisiana today?
Based on our latest USGS data, Bayou Lafourche At Lockport, La is currently the warmest water body in Louisiana at 90.7°F.
Which Louisiana lakes are good for swimming right now?
Lakes with water temperatures above 72°F are generally comfortable for swimming. Louisiana averages 83°F, making most water bodies suitable for swimming right now.
What is the best water temperature for fishing in Louisiana?
The optimal temperature range depends on your target species. For bass fishing, look for water bodies between 65–75°F. For trout, target the coldest water bodies in Louisiana — typically 50–65°F. Use the table above to identify which lakes are in the ideal range for your target species.
🔬 Data Methodology & Sources
Water temperature readings on this site are collected from USGS (United States Geological Survey) monitoring stations installed at lakes, rivers, and reservoirs across the country. Sensors measure water surface temperature in Celsius, which is converted to Fahrenheit for display. Data is retrieved and stored daily. Temperatures shown reflect the most recent available sensor reading for each water body, typically from the past 1–30 days depending on station reporting frequency.
⚠️ Water temperatures can vary significantly across a water body due to depth, currents, and time of day. Sensor readings represent conditions at the monitoring station location. Always exercise caution when swimming and consult local authorities for official safety advisories.