How much of Puerto Rico's coast NOAA rated low, warning, medium or high, month by month, from July 2025 to October 2026. NOAA's daily archive starts in July 2025, so this is still a short record.
Worst months so far: August 2026, August 2025, July 2026.
Calmest months so far: February 2026, January 2026, December 2025.
The usual pattern across the Caribbean: sargassum builds from about April or May, peaks in summer, and drops off by November. 2025 was a record year, and Puerto Rico declared an emergency that summer.
One NOAA report per week until Oct 2026, then every daily report.