Climate Overview

Taiwan stretches from the Tropic of Cancer across the middle of the island — the north is subtropical, the south tropical. The central mountain range (over 200 peaks above 3,000 m) divides the island into a humid east side and a drier west side. Therefore, the weather can vary greatly depending on the region.

Region	Spring (Mar–May)	Summer (Jun–Sep)	Autumn (Oct–Nov)	Winter (Dec–Feb)
Taipei & North	18–28°C, variable	28–38°C, humid, typhoons	20–28°C, ideal	12–20°C, often rainy
Taichung/Central	20–30°C, sunny	26–35°C, afternoon rain	22–30°C, dry	15–24°C, mild
Tainan/South	22–32°C, sunny	27–35°C, humid	24–30°C, warm	18–26°C, pleasant
Mountains (>2,000 m)	8–18°C	12–22°C	8–18°C	0–12°C, frost possible

The decisive factor is the humidity: In summer, it is 80–90% in Taipei — combined with 35°C, it feels like a sauna. In autumn, the humidity drops significantly, and the air becomes clear and pleasant.