Taiwan in May: Weather, Crowds & What to Expect

Northern Taiwan (Taipei, Keelung, Yilan)

May is when the plum-rain front usually sets in across northern and central Taiwan: expect alternating stretches of hot, humid sunshine and half-day downpours in Taipei and Yilan. The rainfall clears smoke and pollen but can cause flash flooding and slow train service on rainy days-carry waterproof footwear and allow extra travel time. Festivals and temple events continue; museum visits or hot-spring baths in Beitou are forgiving indoor options when rain arrives.

Central Taiwan & West Coast (Taichung, Changhua, Sun Moon Lake)

May is when the central west starts to feel the meiyu influence-Sun Moon Lake and nearby waterfalls grow louder and more impressive after heavy rains, but day hikes get slippery. Taichung may still enjoy many dry stretches compared with the north, though travelers should be ready for sudden downpours and plan indoor backup activities like the National Taichung Theater. Ferry and mountain road disruptions are more common during heavy rain events.

Southern Taiwan & Kenting (Kaohsiung, Tainan, Pingtung, Kenting Peninsula)

May ramps up the heat and humidity across the south and the first typhoon season disturbances begin to show-Kenting can still be excellent for water sports, but storms can roll in with little warning. Kaohsiung’s port activity may be interrupted on stormy days, and Pingtung’s rural roads can become soft and muddy where drainage is poor. Pack light clothing, sunscreen and a hat, and confirm dive or ferry bookings close to departure.

Eastern Taiwan & East Coast (Hualien, Taitung, Taroko Gorge, East Rift)

May usually marks the start of the meiyu in the east as well; expect alternating sunny mornings and intense afternoon rains, which turn river gorges and waterfalls spectacular but can close narrow trails in Taroko. Taitung’s coast warms and the surfing season picks up; ferry schedules to offshore islands become more weather-dependent. If you plan snorkeling or diving, keep an eye on local sea conditions and book flexible trips.

High Mountains & Central Range (Alishan, Yushan, Hehuanshan, Cross-Island Highways)

May is transitional: wildflowers and rhododendrons flush across subalpine meadows while afternoon thunderstorms begin to appear later in the day. Snow is usually gone from most accessible trails, but rivers and small streams swell from the meiyu rains below-expect muddy tracks and slippery wooden bridges. This is a rewarding time for longer treks if you watch weather reports and avoid storm-prone days.