Expect warmer days ahead, says PAGASA

Filipinos should expect warmer days ahead as humidity ramps up during the dry season, PAGASA said Wednesday.

"Dito po sa Luzon, although asahan po natin partly cloudy, sa northern at Central Luzon, expect hindi maulap. Mas nanaaig ang mainit at maalisangang panaho," weather forecaster Samuel Duran said in Dano Tingcungco's Wednesday report on 24 Oras.

"Sa Tuguegarao po, ine-expect natin maari pong umabot sa 39 degrees Celsius. Samantala sa Metro Manila, puwede umabot sa 36 degrees Celsius and pinaka-mainit na temperatura," he added.

The maximum temperature recorded in Metro Manila at 3:50 p.m. was 36.8 degrees Celsius.

The heat index, meanwhile, was recorded at 42 degrees Celsius at Science Garden in Quezon City at 3:50 p.m.

The heat index, or init factor, is the measure of the temperature that a person feels in contrast to the actual air temperature.

Essentially, it measures "human discomfort" and is the apparent temperature felt by the human body. It is computed by factoring in the humidity as well as the air temperature.

PAGASA's heat index chart

 — Joahna Lei Casilao/BM, GMA News