October to December Is the Safest, Most Comfortable Window
Taipei's autumn is the period most visitors end up happiest with: typhoon season is winding down by late October, humidity drops out of the oppressive summer range, and daytime temperatures settle into a comfortable low-to-mid 20s°C. Rainfall is lower than spring or summer, and the light is generally clearer, which matters if you're planning a Jiufen or Yangmingshan day trip where views are the whole point. This window also lines up with the city's own seasonal food calendar — persimmon season in the hills around Taipei, and the cooler evenings that make a night market crawl through Shilin or Raohe genuinely pleasant rather than a sweat-soaked errand.
The tradeoff is that this is also when most other travelers are thinking the same thing, so book Jiufen day-trip transport and any timed-entry tickets (Taipei 101, the National Palace Museum) a few days ahead rather than assuming same-day availability.








