Pagasa warns of dangerous heat index up to 47°C in Aparri, Guiuan

Aparri in Cagayan and Guiuan in Eastern Samar are expected to hit the highest heat index of 47 degrees Celsius (°C) on Sunday, according to the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (Pagasa).

Dagupan City in Pangasinan and Laoag City in Ilocos Norte are also experiencing extreme heat at 45°C.

The high heat index is classified as 'dangerous,' potentially causing heat cramps, exhaustion, and strokes with prolonged exposure.

Fifteen other areas across the Philippines are facing dangerous levels of heat index ranging from 42°C to 44°C on Sunday, including Bacnotan in La Union, Tuguegarao City in Cagayan, and San Jose in Occidental Mindoro.

To ensure public safety, Pagasa advised limiting outdoor time amid the extreme heat and urged residents to take precautions such as drinking plenty of water and scheduling heavy-duty activities during cooler periods of the day.