The temperature is already known to fall to freezing on Mount Apo (nearly 3000 metres above sea level) ...maginaw na maginaw... although snow has not (yet) been recorded actually landing on the ground anywhere in the Philippines
The lowest recorded temperature in Manila over the past 50 years is 14 degrees Celsius ( 58 degrees Fahrenheit) ...but in Baguio City it has fallen to just over 6 degrees Celsius (42 degrees Fahrenheit).
In Iloilo the lowest recorded is 20 Celsius (68 Fahrenheit) ; Surigao and Zamboanga 19 Celsius (67 Fahrenheit).