Taipei Weather in September

September weather

September feels hot, damp and often cloudy in Taipei. Highs reach 29°C, and humidity sits at 85%, so even a short walk around Ximending can feel sticky. Rain falls on 19 days, often interrupting outdoor plans.

You can still visit temples, browse the shops under Taipei Main Station or ride the MRT between sights. Save Yangmingshan hikes and long walks along the Tamsui riverfront for clearer spells. Typhoons can also disrupt travel, so keep a flexible day for indoor stops.

Festivals and holidays

The Mid-Autumn Festival sometimes falls in September. Families gather to eat mooncakes and barbecue, and you may see festive displays around the city. Its date follows the lunar calendar, so it can also land in October.

Taipei's night markets stay lively in the warm evenings. Try pepper buns at Raohe Night Market, but take shelter if a shower rolls through. The Taipei Arts Festival also runs around this time, with performances across the city; its programme changes each year.

Crowds and costs

September is generally quieter than Taipei's popular November-to-March stretch. It's also less packed than the Lunar New Year period, though Mid-Autumn travel can bring busy transport and family gatherings. Hotel rates are often gentler than in peak season, but typhoon forecasts can change plans.

If you hate crowds, September may suit you better than winter—but don't expect empty streets. For a rainy afternoon, use the underground links between Taipei Main Station and Zhongshan. They make it easy to browse shops without getting soaked, and you can reach the Red House in Ximending when the weather clears.