Climate
Weather in South Korea in September
Weather in South Korea, September
In September, South Korea sees average highs of 26.1°C (79°F) and lows of 18.4°C (65°F), with around 204 mm of rain. It is one of the best months to visit.
South Korea — September
South Korea → September
- Daytime high
- 26.1°C (79°F)
- Overnight low
- 18.4°C (65°F)
- Rainfall
- 204 mm
- Best-time rank
- Recommended month
How September compares
| This month | 26.1°C (79°F) / 18.4°C (65°F) · 204 mm |
|---|---|
| Yearly average | 17.1°C (63°F) / 8.2°C (47°F) · 122 mm |
September in South Korea runs 9°C (16.2°F) warmer than the yearly average, and is wetter than the yearly average. Pack layers you can adjust through the day — mild conditions, and something waterproof — this is a wetter month.
Common questions
What is the weather like in South Korea in September?
Average highs of 26.1°C (79°F) and lows of 18.4°C (65°F), with around 204 mm of rain.
Is September a good time to visit South Korea?
Yes — September is one of the more comfortable months in South Korea, based on temperature and rainfall.
Updated climate normals, 2025