Metro Manila’s human discomfort index, aka heat index, is expected to reach 38.8 degrees Celsius on Friday, according to the Philippine Atmospheric Geophysical and Astronomical Services Administration (PAGASA).

Again, the highest heat index is expected to happen in Tuguegarao City at 40.8 degrees Celsius, PAGASA’s official website reported.

Check out the list below to see today’s maximum temperature (HI_Tx) forecast in other areas of the Philippines.

1. Baguio City

Heat Index maximum temperature (HI_Tx): 25.8 degrees Celsius

2. Cagayan De Oro City

Heat Index maximum temperature (HI_Tx): 36.3 degrees Celsius

3. Laoag City

Heat Index maximum temperature (HI_Tx): 38.4 degrees Celsius

4. Legaspi City

Heat Index maximum temperature (HI_Tx): 36.3 degrees Celsius

5. Iloilo/Bacolod City

Heat Index maximum temperature (HI_Tx): 37.8 degrees Celsius

6. Metro Cebu

Heat Index maximum temperature (HI_Tx): 38.2 degrees Celsius

7. Metro Davao

Heat Index maximum temperature (HI_Tx): 37.5 degrees Celsius

8. Puerto Princesa City

Heat Index maximum temperature (HI_Tx): 38.8 degrees Celsius

9. Subic Bay Metropolitan Authority (SBMA)

Heat Index maximum temperature (HI_Tx): 35.8 degrees Celsius

10. Tacloban City

Heat Index maximum temperature (HI_Tx): 36.4 degrees Celsius

11. Zamboanga City

Heat Index maximum temperature (HI_Tx): 38.0 degrees Celsius

Heat Index is the combination of air temperature and humidity. It is what the humans perceive as the temperature affecting the body. It is also called “apparent” temperature, which is different from air temperature because the latter measures how cold or hot the air is. 

Extreme caution is advised by PAGASA during this time. There is a possibility for people living in areas with 32 to 41 degrees Celsius heat index to experience heat cramps and heat exhaustion. It could even result in heat stroke if activities are continued under this heat index range.

The heat index forecast is valid from 5:00 am on Friday, April 29 to 5:00 am on Saturday, April 30.