Harbin weather in September
September in Harbin: nice, rainy — one of the best months to visit.
#2 of 12 months in Harbin · #134 of 604 destinations to visit in September · comfort 87/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Harbin climate normals — September
| Daytime high | 21°C / 70°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Feels like (high) | 20°C / 68°F | |
| Rainfall | 87 mm / 3.4 in | 🌧 rainy |
| Rainy days | 9 days | |
| Humidity | 70% | 💧 humid |
| Dew point | 11°C / 52°F | |
| Sunshine | 9 h/day | |
| Daylight | 12.5 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 51 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Harbin?
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Harbin in September — FAQ
- Is September a good time to visit Harbin?
- September in Harbin: nice, rainy — one of the best months to visit. It ranks #2 of 12 months for Harbin on SeasonMap's comfort score (87/100).
- What is the weather like in Harbin in September?
- In September, Harbin averages a daily high of 21.2°C and a low of 12°C, with about 87.1 mm of rain over roughly 9.2 rainy days.
- What is the air quality in Harbin in September?
- Harbin has a mean US Air Quality Index of about 51 in September.