About Sasmuan, Central Luzon

With a population of around 21,100, Sasmuan sits in Central Luzon, Philippines. The city operates in the Asia/Manila time zone.

In 2025, Sasmuan averaged an annual temperature of 81°F, with hottest temperatures reaching 100°F in April and lowest around 70°F in December. The city received approximately 107 inches of precipitation during the year.