Asia has only been a major surf destination since 25 years or so.
Indonesia still being the most famous place in the area with world class left waves like Padang Padang, G-land and Uluwatu. But the Philippines and Sri Lanka have also been growing in popularity in the last 10 years.
Budget wise there's the ultra expensive country like Japan to the dirt cheap living on the Indonesian islands. The weather is comfortable in most countries year round, the swell consistency can vary with the seasons.