National Weather ServicePuerto RicoHeat AdvisoryArchive to October 1, 2026
Heat Advisories in Puerto Rico
The National Weather Service issued 82 heat advisories for Puerto Rico in 2025 and 22 a year on average in 2008-2025; in 2021-2025 it had the 7th most of any state. 2026 through September: 65, 253% above the average of 18 for those months in 2008-2025. North Central was covered most often (336 times since 2008).
How many heat advisories does Puerto Rico get?
Every heat advisory that covered part of Puerto Rico. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 65 |
| 2025 | 82 |
| 2024 | 140 |
| 2023 | 141 |
| 2022 | 26 |
| 2021 | 0 |
| 2020 | 0 |
| 2019 | 2 |
| 2018 | 0 |
| 2017 | 1 |
| 2016 | 0 |
| 2015 | 0 |
| 2014 | 0 |
| 2013 | 0 |
| 2012 | 0 |
| 2011 | 0 |
| 2010 | 0 |
| 2009 | 0 |
| 2008 | 0 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Puerto Rico get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Puerto Rico?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| North Central | 336 | 309 | September 27, 2026 |
| Northwest | 330 | 319 | September 27, 2026 |
| San Juan and Vicinity | 324 | 303 | September 27, 2026 |
| Mayaguez and Vicinity | 311 | 302 | September 27, 2026 |
| Culebra | 260 | 260 | September 27, 2026 |
| Northeast | 259 | 254 | September 27, 2026 |
| Southwest | 247 | 244 | September 27, 2026 |
| Southeast | 242 | 238 | September 27, 2026 |
| Ponce and Vicinity | 238 | 233 | September 27, 2026 |
| Vieques | 232 | 232 | September 27, 2026 |
| Eastern Interior | 175 | 175 | September 27, 2026 |
| Central Interior | 15 | 15 | September 27, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
What is a heat advisory?
A heat advisory means heat that can make people ill, especially those without cooling, below the office's extreme heat warning values. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. The national record · Every warning type in Puerto Rico.