Best months
October to April is cooler and drier. December to February can drop to 10–15°C in Taipei, so pack a light jacket.
Typhoon season
July to October. Flights can be cancelled, so get travel insurance and keep your plans flexible.
Festivals
Lantern Festival and Pingxi sky lanterns: around February (15th day of the Lunar New Year).
Taipei 101 New Year fireworks: December 31.