taiwan is a tropical island, rainy season is around mid jan to mar. gets very hot and humid june through mid sept. being from the northeast of U.S. i like to go during november, days are mid 80's and cools off at nights. very comfortable
every town has a night market on a different night of the week. the bigger cities have alleys, parks that are used in the evenings/early mornings for shopping and eating.
taipei has two big ones that run every night of the week. snake alley ( hualien) and near the grand hotel there is shilin. both are very crowded. shilin has better choice of foods.
taipei 101 neighborhood has more american style shopping malls very expensive, hugo boss, chanel, louis vuitton, rolex, gucci, all the high priced brand name. about 6 years ago