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.
September offers a pleasant experience for your group tour to South Korea. With daytime temperatures comfortably warm at 23-26°C and overnight lows around 17°C, the weather is ideal for sightseeing without extreme heat or cold. Expect about 12 rainy days, so packing a compact umbrella or light rain jacket is a practical tip. This month suits those who prefer mild weather and fewer crowds than peak summer, making it excellent for exploring cities and cultural sites.
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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