textproduct: San Juan

This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.

Short Term(This afternoon through Friday)

Issued at 1142 AM AST Wed Jul 29 2026

The Heat Advisory for Puerto Rico has been upgraded to an Extreme Heat Warning as heat indices above 100 and 108 degrees Fahrenheit become more widespread, supported by near record temperatures in some weather stations and persistently high humidity values. This marks the first Extreme Heat Warning issued for Puerto Rico this year.

Regardless, residents and visitors are strongly encouraged to follow heat safety recommendations, limit prolonged outdoor activities during peak afternoon hours, remain well hydrated, and check on vulnerable communities.

SJU WATCHES/WARNINGS/ADVISORIES

PR...Extreme Heat Warning until 5 PM AST this afternoon for PRZ001>005-007-008-010-011.

Heat Advisory until 5 PM AST this afternoon for PRZ012-013.

VI...Heat Advisory until 5 PM AST this afternoon for VIZ001-002.

AM...None.

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