What is the weather like in Busan vs Incheon in September?

In September, Busan averages 27°C high / 21°C low with about 237 mm of rain; Incheon averages 26°C high / 19°C low with about 148 mm.

Busan vs Incheon in September

Incheon is the better pick in September — 76 vs 65 on SeasonMap's comfort score. Incheon is warm, rainy, muggy air, while Busan is hot, soaked, clean air.

Busan vs Incheon — September climate, side by side

	🇰🇷 Busan	🇰🇷 Incheon
Comfort score	65/100 (C)	76/100 (B)
Feels-like high	30°C	28°C
Avg high / low	27° / 21°	26° / 19°
Rainfall	237 mm	148 mm
Rainy days	13	9
Humidity	79%	80%
Air quality (AQI)	47	73

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Busan 🇰🇷 South Koreahot, soaked, clean air · best May65
Incheon 🇰🇷 South Koreawarm, rainy, muggy air · best May76

Busan vs Incheon in September — FAQ

Is September better in Busan or Incheon?: Incheon is the better pick in September — 76 vs 65 on SeasonMap's comfort score. Incheon is warm, rainy, muggy air, while Busan is hot, soaked, clean air.
What is the weather like in Busan vs Incheon in September?: In September, Busan averages 27°C high / 21°C low with about 237 mm of rain; Incheon averages 26°C high / 19°C low with about 148 mm.