HEAT indexes in 15 areas across the country reached “danger” levels on Saturday, the state weather bureau said.

The highest heat index or highest level of human discomfort was recorded in Dagupan City, Pangasinan at 47.6 degrees Celcius (C), resulting from a temperature of 35.5 C and relative humidity of 62 percent at 2 p.m., the Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa) said on Sunday.