Batangas State University – The National Engineering University advises residents in Alangilan, Lipa, Pablo Borbon, Malvar, and Nasugbu to prepare for warm to hot weather conditions on May 18, 2026, with temperatures ranging from 26.67°C to 32°C and heat index levels reaching up to 35.15°C. Light winds between 6–9 kph may provide minimal relief from the heat.

Extreme caution is advised as heat cramps, heat exhaustion, and heat stroke are possible during prolonged outdoor exposure. Residents are encouraged to stay hydrated, wear light clothing, rest in cool or shaded areas, and use umbrellas or other sun protection when going outside..

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