Please advice typhoon Taiwan fall on which month. what is the weather for month of May?

The typhoon season is during June and early Oct. At this point, it is safe to travel in May. In the month, it is warm even hot and wet. According to the past weather records, the temp may range from 22C to 30C. While it would rain frequently and heavy rain really may influence your trip. Actually, the best timing to travel there is Nov. to next Mar. with pleasant temp and sunshine.