Visiting South Korea in September: Weather, Costs & Is It Worth It (2026)
Quick answer: In September, South Korea averages daytime highs of 23.3–25.6°C across its 6 main cities, overnight lows near 17.1°C, and about 12 rainy days. Seoul sees ~25.3°C days. 1 INR ≈ 15.842171 KRW (as of Mon, 01 Jun 2026). Verdict: Good — comfortable — manageable 25.3°C days.
South Korea weather in September, city by city
Real September averages from 10 years of climate data (2015–2024). Note how much the cities differ — this is why "South Korea weather" alone is misleading.
| City | Avg high | Avg low | Rainy days | Verdict |
|---|---|---|---|---|
| Seoul | 25.3°C | 17.1°C | 9 | Good — comfortable |
| Busan | 25.3°C | 19.3°C | 13 | Wet season — plan around rain |
| Jeju | 25.6°C | 21.6°C | 17 | Wet season — plan around rain |
| Incheon | 25.1°C | 18°C | 9 | Good — comfortable |
| Gyeongju | 25°C | 18.4°C | 14 | Wet season — plan around rain |
| Sokcho | 23.3°C | 17.9°C | 12 | Wet season — plan around rain |
What to pack for South Korea in September
With highs around 25.3°C and lows near 17.1°C, pack light summer clothing plus a thin layer for evenings, a compact umbrella or rain shell.
Money & costs for Indian travelers
As of Mon, 01 Jun 2026 00:02:31 +0000, 1 Indian Rupee ≈ 15.842171 KRW. Carry a forex card plus some cash; airport exchange rates are usually poorer than city rates. For an all-inclusive South Korea group tour from India, see current South Korea packages & ₹ prices.
Public holidays in South Korea, September
- 2026-09-24 — Chuseok
- 2026-09-25 — Chuseok
- 2026-09-26 — Chuseok
- 2027-09-14 — Chuseok
- 2027-09-15 — Chuseok
- 2027-09-16 — Chuseok
Major sites can be crowded or closed around these dates — plan your itinerary accordingly.
South Korea in September — FAQs
What is the weather like in South Korea in September?
In September, South Korea averages daytime highs of 23.3–25.6°C across its cities, with overnight lows around 17.1°C and roughly 12 rainy days. Seoul typically sees 25.3°C days and 17.1°C nights.
Is September a good time to visit South Korea from India?
Good — comfortable. In Seoul, manageable 25.3°C days. September is a comfortable month for Indian travelers — see the city-by-city breakdown above to plan around the heat or rain.
What should I pack for South Korea in September?
For September (17.1–25.6°C), pack light summer clothing plus a thin layer for evenings, a compact umbrella or rain shell.
What is the exchange rate for South Korea from India?
As of Mon, 01 Jun 2026 00:02:31 +0000, 1 Indian Rupee ≈ 15.842171 KRW. Carry a mix of cash and an international debit/forex card; rates at the airport are usually worse than in the city.
Are there public holidays in South Korea in September?
Yes — Chuseok (2026-09-24), Chuseok (2026-09-25), Chuseok (2026-09-26), Chuseok (2027-09-14), Chuseok (2027-09-15), Chuseok (2027-09-16). Major sites and offices can be crowded or closed around these dates, so plan accordingly.
Plan your South Korea trip
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