This Holy Week 2026, high heat index and thunderstorms are expected

How hot is it going to get this Holy Week? Extreme caution levels, experts say.

Those who observe Holy Week traditions are advised to bring sunscreen and fans and to avoid prolonged sun exposure, as we are currently in April, expected to be among the hottest months of 2026.

Though there might be a few surprise showers in some parts of the country, don’t be fooled because the heat index is expected to hit high levels as well.

According to PAGASA’S special weather outlook, current weather conditions are being driven by two primary systems: the easterlies, or warm, humid winds blowing from the Pacific Ocean that often bring stifling heat, cloudy skies, and potential thunderstorms; and the ridge of high-pressure area, a system that generally brings dry and clear weather, further intensifying the heat felt across the country.

PAGASA officially announced the end of Amihan or Northeast Monsoon season on March 23,
2026, signaling the definitive start of the warm and dry season.

Senior weather specialist Dr. Joseph Basconcillo said that for Metro Manila, temperatures are expected to soar up to 39°C in April and 37.6°C in May. According to PAGASA’s heat index chart, temperatures from 33-41°C fall under Extreme Caution, where heat exhaustion and heat cramps may be experienced and prolonged activities under the sun may lead to heat stroke.

Catanduanes and Capiz, which are expected to hit 47°C and 43°C respectively, already fall under the Danger level in PAGASA’S heat index chart. Heat cramps and heat exhaustion, as well as heatstroke may be experienced under these weather conditions. 

However while current temperatures are high, they remain slightly lower than the record- breaking heat of 2024, which was fueled by a strong El Niño.

Looking ahead, PAGASA monitors a 50% chance of El Niño returning between July and September 2026. This potential recurrence could coincide with the Habagat (Southwest Monsoon) season, which experts warn may lead to more intense typhoons later in the year. — Arla Fabella/LA, GMA News