Conditions in Taiwan are of a warm, temperate climate for most of the year, the waters are warm and are in the 20 - 30 degree's celcius mark all-year-round. The waters around Taiwan include: The South China Sea. The vast country China is just visible from the island. The waters are typically of intermediate visibility and the waters are in a sub-tropical zone.
Taiwan has a mild tropical climate throughout the country for part of the year. At slightly north of the equator just to the north and occasionally gets the occasional cyclone / tropical storm.
The trend for diving in Taiwan is near-certainly a club-based diving scene with no known resorts for diving.
Hyperbaric Chamber facilities are available in Taiwan.