Taipei weather in September
September in Taipei: sweltering, soaked, with very humid — a fair time to visit.
#9 of 12 months in Taipei · #540 of 604 destinations to visit in September · comfort 57/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Taipei climate normals — September
| Daytime high | 29°C / 85°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Feels like (high) | 34°C / 93°F | |
| Rainfall | 234 mm / 9.2 in | ⛈ soaked |
| Rainy days | 17 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 9.1 h/day | |
| Daylight | 12.3 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 53 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Taipei?
Loading map…
Taipei in September — FAQ
- Is September a good time to visit Taipei?
- September in Taipei: sweltering, soaked, with very humid — a fair time to visit. It ranks #9 of 12 months for Taipei on SeasonMap's comfort score (57/100).
- What is the weather like in Taipei in September?
- In September, Taipei averages a daily high of 29.2°C and a low of 25°C, with about 233.8 mm of rain over roughly 16.8 rainy days.
- What is the air quality in Taipei in September?
- Taipei has a mean US Air Quality Index of about 53 in September.