Puerto Rico and the U.S. Virgin Islands’ heat advisory has cleared after an elevated heat illness risk window stretched across both territories during afternoon hours Thursday.
The National Weather Service issued the advisory to run from 11 a.m. through 4 p.m. AST, covering a broad geographic footprint across the islands. In Puerto Rico, the warning encompassed San Juan and its vicinity, the northeast, southeast, north-central interior, the Ponce corridor, the northwest, the Mayagüez area, the southwest coast, and the island municipalities of Culebra and Vieques. The U.S. Virgin Islands were included in full as well.
The advisory flagged peak afternoon conditions as the primary concern, with heat illness risk elevated for residents and visitors outdoors during those hours. The National Weather Service is still assessing any heat-related health impacts from the event; no confirmed figures are available at this time.
What to Watch Going Forward
Although the formal advisory has expired, the Caribbean’s underlying weather pattern warrants attention. The region’s warm season typically brings persistent elevated temperatures and humidity through the summer months, and short-term heat events of this kind can recur with relatively little advance notice when synoptic conditions align.
Residents across Puerto Rico and the Virgin Islands should continue to monitor NWS San Juan forecasts closely over the coming days. Hydration, limiting strenuous outdoor activity during midday and early afternoon hours, and checking on vulnerable neighbors remain practical precautions even in the absence of an active advisory.
For San Juan weather, the NWS San Juan office remains the authoritative source for any follow-on heat products or updated forecasts as the week progresses.
No additional heat advisories are currently in effect for either territory. Weather Window will continue to monitor conditions and update coverage if the NWS issues new products for the region.