Gyeongju weather in September
September in Gyeongju: warm, soaked, with clean air — a good time to visit.
#8 of 12 months in Gyeongju · #448 of 604 destinations to visit in September · comfort 67/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Gyeongju climate normals — September
| Daytime high | 25°C / 77°F | 🌤 warm |
|---|---|---|
| Nighttime low | 19°C / 67°F | |
| Feels like (high) | 27°C / 81°F | |
| Rainfall | 220 mm / 8.7 in | ⛈ soaked |
| Rainy days | 13 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 19°C / 66°F | |
| Sunshine | 7.7 h/day | |
| Daylight | 12.4 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 47 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Gyeongju?
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Gyeongju in September — FAQ
- Is September a good time to visit Gyeongju?
- September in Gyeongju: warm, soaked, with clean air — a good time to visit. It ranks #8 of 12 months for Gyeongju on SeasonMap's comfort score (67/100).
- What is the weather like in Gyeongju in September?
- In September, Gyeongju averages a daily high of 25.2°C and a low of 19.4°C, with about 220.2 mm of rain over roughly 13 rainy days.
- What is the air quality in Gyeongju in September?
- Gyeongju has a mean US Air Quality Index of about 47 in September.