Early autumn · Weather & things to do
Taipei in September
Taipei edges cooler than August, with highs of 83°F (28°C), lows of 79°F (26°C) and about 9.9 in (252 mm) of rain.
Our comfort score puts it mid-table at 47/100, 10th of 12.
- Avg high
- 83°F (28°C)
- Avg low
- 79°F (26°C)
- Rain
- 9.9 in (252 mm)
- Humidity
- 84%
- Cloud cover
- 67%
- Daylight
- ~12 h 08 min
- Comfort score
- 47/100 · Fair
What September feels like
Highs settle around 83°F (28°C), warm enough for short sleeves.
Nights stay warm too, with lows averaging 79°F (26°C).
Humidity averages 84%, so the air feels sticky and the heat feels stronger than the thermometer says.
It's a very wet month, with around 9.9 in (252 mm) of rain, so keep plans flexible and have indoor backups ready.
Plan around September
September sits mid-table; the best months are January and October.
- Comfort improves from 42/100 in August to 47/100.
- Our Taipei, Jiufen & Taroko route recommends Oct – Dec, Mar – May, so September falls outside its suggested window.
What to pack for September
- Light, breathable clothes83°F afternoons
- Quick-dry fabrics84% average humidity
- Rain jacket and waterproof shoes9.9 in of rain on average
- Comfortable walking shoesmost picks involve some walking
What to do in Taipei in September
Wet days call for a roof: these picks favor sit-down and indoor stops, plus a few for drier spells.
National Palace Museum
One of the world's great collections of Chinese imperial art, jade and calligraphy.
Why now An indoor-leaning stop for a month with 9.9 in of rain.
Din Tai Fung Xinyi
The original location of the soup dumpling chain, still known for precise xiaolongbao.
Why now A sit-down stop to wait out showers in a month with 9.9 in of rain.
Longshan Temple (Mengjia Longshan Si)
Ornate 18th-century temple, busy with worshippers from dawn to night.
Qingtian Tea House
Gongfu tea service in a restored Japanese-era professor's house on a quiet Da'an lane, with a small gallery inside.
Why now Easy to slot in when September's rain moves in.
Elephant Mountain (Xiangshan)
Steep 20-minute stair climb to the classic view of Taipei 101.
Nearby in September
- Jiufen and Pingxi in September~18 mi · highs 80°F, 9.9 in rain · 2°C (3°F) cooler by day, about as wet
- Hualien and Taroko in September~72 mi · highs 84°F, 8.7 in rain · similar daytime temperatures, drier
- Tainan in September~164 mi · highs 84°F, 9.5 in rain · similar daytime temperatures, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Taipei in September: quick answers
Is September a good time to visit Taipei?
It's middling, scoring 47/100. The best months are January and October, at up to 74. Expect highs of 83°F (28°C) and 9.9 in (252 mm) of rain. Our Taipei, Jiufen & Taroko route recommends Oct – Dec, Mar – May, so September is outside its suggested window.
How hot is Taipei in September?
Average highs are 83°F (28°C) and average lows 79°F (26°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Taipei in September?
Yes: about 9.9 in (252 mm) of rain falls across September on average, the 3rd-wettest month of the year. The annual total is about 76.6 in (1946 mm).
What should I pack for Taipei in September?
Bring light, breathable clothes (83°F afternoons), quick-dry fabrics (84% average humidity), rain jacket and waterproof shoes (9.9 in of rain on average) and comfortable walking shoes (most picks involve some walking).
Planning Taipei in September?
Share this September plan with your group, poll everyone on dates and keep the packing list in one place.