Taipei Weather in September
Thinking of visiting Taipei in September? Expect very high temperatures reaching 30°C (86°F) during the day, dropping to 24°C (75°F) at night. Heavy showers are common during the rainy season.
Rainfall in Taipei in September
As part of the rainy season, Taipei sees around 17 days of rain in September, with an average of 252 mm (9.9 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.
Temperature in Taipei in September
In September, expect very high temperatures in Taipei, with highs of 30°C (86°F) and lows of 24°C (75°F) at night. For most visitors, the main thing to prepare for is the heat during the day. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Taipei in September
The city usually sees around 153 hours of sunlight, indicating a moderately sunny period (despite it being part of rainy season).September in Taipei can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Taiwan, check out our Taipei's climate page.
Taipei Temperature in September
Min Temperature
24°C (75°F)
Max Temperature
30°C (86°F)
Chance of Rain
55%
Precipitation
252 mm (9.9 in)
Rainy days
17 days
Humidity
74%
Sunshine
153 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Taipei typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows typically ranging from 23°C (73°F) to 26°C (79°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Taipei in September
Browse day-by-day weather records for Taipei spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Taipei historical weather extremes in September
Based on 49 years of weather observations in Taipei between 1976 and 2025, these are the recorded extremes.
- The hottest September day on record in Taipei reached 38°C (100°F) (September 2, 2024).
- The coldest September day was on September 28, 1997, with a maximum of 21°C (70°F).
- Taipei registered its coldest September night on September 7, 2000, with temperatures dropping to 15°C (59°F).
Best Places in Taiwan in September
Find out more about the weather in Taiwan and which places have the best travel conditions in this month. See all of Taiwan in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Taipei in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Taipei in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Taiwan, check out our Taipei's climate page.
Temperature Rainfall Sunshine Humidity
See the full Taipei climate overview or explore weather in Taiwan.
