Hualien weather in September
September in Hualien: warm, soaked, with clean air — a gamble, with 23 rainy days.
#11 of 12 months in Hualien · #809 of 897 destinations to visit in September · comfort 58/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Hualien in September
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Hualien climate normals — September
| Daytime high | 28°C / 83°F | 🌤 warm |
|---|---|---|
| Nighttime low | 23°C / 74°F | |
| Rainfall | 366 mm / 14.4 in | ⛈ soaked |
| Rainy days | 23 days | |
| Humidity | 85% | 💦 very humid |
| Dew point | 23°C / 73°F | |
| Sunshine | 9.1 h/day | |
| Daylight | 12.3 h | |
| Wind | 7 km/h / 5 mph | |
| Air quality (US AQI) | 36 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Hualien in September — FAQ
- Is September a good time to visit Hualien?
- September in Hualien: warm, soaked, with clean air — a gamble, with 23 rainy days. It ranks #11 of 12 months for Hualien on SeasonMap's comfort score (58/100).
- What is the weather like in Hualien in September?
- In September, Hualien averages a daily high of 28.2°C and a low of 23.3°C, with about 366.1 mm of rain over roughly 22.8 rainy days.
- What is the air quality in Hualien in September?
- Hualien has a mean US Air Quality Index of about 36 in September.