The Philippines are most popular during the dry season, between November and April. At this time the country is fully accessible, including its many beautiful islands and more remote areas. Temperatures are high during March and April, so it's best to travel during the cooler months of December to February.
The best time to visit the Philippines depends on your interests and what you want to experience. However, in general, the best time to visit the Philippines is during the dry season (December to May).