‘Danger level’ heat index forecast for 25 areas on Monday, May 26, 2025

Twenty-five areas across the country are forecast to experience a “danger level” heat index on Monday, May 26, according to PAGASA on Sunday.

Based on the state weather bureau’s 5 p.m. May 25 bulletin, the synoptic stations in the following areas will measure a 42°C-46°C heat index:

46°C
Dagupan City, Pangasinan

45°C
Aparri, Cagayan

44°C
Laoag City, Ilocos Norte
Tuguegarao City, Cagayan
Sangley Point, Cavite City
Masbate City
CBSUA-Pili, Camarines Sur

43°C
MMSU, Batac, Iloco Norte
Bacnotan, La Union
ISU Echague, Isabela
Baler (Radar), Aurora
Cubi Pt. Subic Bay, Olongapo City
TAU Camiling, Tarlac
Infanta, Quezon
Iloilo City
Dumangas, Iloilo

42°C
NAIA Pasay City
Science Garden Quezon City
Sinait, Ilocos Sur
Casiguran, Aurora
Iba, Zambales
San Ildelfonso, Bulacan
Alabat, Quezon
Catbalogan, Western Samar
Guiuan, Eastern Samar

The heat index is the measure of the temperature that a person feels in contrast to the actual air temperature. Computed by factoring in the humidity as well as the air temperature, the heat index measures "human discomfort" and is the "apparent temperature" felt by the human body.

PAGASA's heat index classification defines heat index temperatures ranging from 42°C to 51°C as being in the "danger" level, where "heat cramps and heat exhaustion are likely; heat stroke is probable with continued exposure."

The weather bureau urges the public to limit outdoor activities, remain hydrated, and wear fresh clothes to avoid heat-related illnesses. — Mariel Celine Serquiña/BM, GMA Integrated News