San Juan, Puerto Rico
Regional Weather Alerts
| Alert: | Heat Advisory |
| Area(s): | San Juan and Vicinity; Northeast; Southeast; Eastern Interior; North Central; Ponce and Vicinity; Northwest; Mayaguez and Vicinity; Southwest; Culebra; Vieques; St.Thomas...St. John.. and Adjacent Islands; St Croix |
| Effective: | 2026-07-12 @ 12:46 am -> 2026-07-12 @ 11:00 am |
| Onset: | 2026-07-12 @ 9:00 am -> 2026-07-12 @ 4:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS San Juan PR on 2026-07-12 @ 12:46 am |
| Headline: | Heat Advisory issued July 12 at 1:46AM AST until July 12 at 5:00PM AST by NWS San Juan PR |
| Description: |
* WHAT...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. expected. * WHERE...Coastal and urban areas of Puerto Rico and Virgin Islands. * WHEN...From 10 AM this morning to 5 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. |