Louisiana Coast sargassum & beach forecast
United States · 1 beaches and resorts
Veabird grades one beach in Louisiana Coast, United States, every six hours on seaweed, water, waves, weather and crowds, including an area page covering a whole stretch of beach. On a typical beach here, sargassum risk is moderate or higher from June to August, peaks in July and is lowest in January, February and December. Across the region, average highs run from about 64°F in January to 90°F in July and August, and the sea from about 59°F to 86°F. Rain is most likely in July and least likely in October.
This week, beach by beach
- Grand Isle Beach Rentals seaweed peak: moderateSatBSunBMonA-TueA-WedB+
Grades for the next few days from Veabird's beach forecast, updated Oct 3, 18:00 UTC. Higher is better: A+ to F.
Weather, water & seaweed by month
| Month | Avg high | Sea | Chance of rain | Sargassum |
|---|---|---|---|---|
| Jan | 64°F | 59°F | 30% | Very low |
| Feb | 67°F | 61°F | 27% | Very low |
| Mar | 72°F | 66°F | 26% | Very low |
| Apr | 78°F | 73°F | 22% | Very low |
| May | 84°F | 81°F | 22% | Low |
| Jun | 89°F | 84°F | 38% | Moderate |
| Jul | 90°F | 86°F | 48% | Moderate |
| Aug | 90°F | 86°F | 47% | Moderate |
| Sep | 88°F | 84°F | 35% | Low |
| Oct | 82°F | 77°F | 20% | Very low |
| Nov | 73°F | 68°F | 25% | Very low |
| Dec | 66°F | 63°F | 30% | Very low |
Regional monthly averages from Veabird's climate table for Louisiana Coast; resort pages add their own spot's numbers where available. Sargassum is the typical-year risk on the median beach here.
Seaweed cleanup & barriers
- Offshore barriers
- None.
- Public cleanup
- Limited: Grand Isle town crews after large events.
- Resort crews
- Minimal; rentals rely on town crews.
- Typical clearing time
- 2–5 days
Safety notes
US domestic
- Swim advisories for bacteria after rain (LDH).
- Very remote; limited lifeguards.
Things to do in Louisiana Coast
- Grand Isle State Park
- Fishing charters
- New Orleans French Quarter (2 hr)