When to go · Guinsa
Guinsa in September
Great month. Inside Guinsa's best window: Sep–Nov (autumn colors).
Key facts
- Verdict
- Great
- Temperature
- 24°C (75°F)75°F (24°C) / 15°C (59°F)59°F (15°C)
- average high / low
- Rain days
- 7
- Crowds
- Medium
- South Korea overall
- Prices
- Medium
- South Korea overall
Verdict
Inside Guinsa's best window: Sep–Nov (autumn colors).
Is another month better than September?
No other month rates higher than September for Guinsa in this guide.
Weather in September
- GuinsaHighs around 24 °C (75 °F), lows around 15 °C (59 °F), rain on about 7 daysHighs around 75 °F (24 °C), lows around 59 °F (15 °C), rain on about 7 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Chuseok (harvest festival) big impact
Chuseok: 24–26 Sep 2026 (passed); about 14–16 Sep 2027 (check) · South Korea
Same three-day shutdown as Seollal; the largest travel peak of the year.
Crowds and prices
- Crowds · South Korea overall
- Medium
- Prices · South Korea overall
- Medium
South Korea overall: Heat eases; typhoon risk remains and Chuseok shuts the country for 3 days in many years.
Compare two months
Weather, crowds and prices for any two months in Guinsa, side by side.
Verdict
Sep: Great
Oct: Great
Daytime high
Sep: 24 °C (75 °F)75 °F (24 °C)
Oct: 18 °C (64 °F)64 °F (18 °C)
Night low
Sep: 15 °C (59 °F)59 °F (15 °C)
Oct: 9 °C (48 °F)48 °F (9 °C)
Rain days
Sep: 7
Oct: 6 (better)
Crowds
Sep: Medium
Oct: High
Prices
Sep: Medium
Oct: High
Festivals listed
Sep: 1
Oct: 1
September: Inside Guinsa's best window: Sep–Nov (autumn colors).
October: Inside Guinsa's best window: Sep–Nov (autumn colors).
Guinsa: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.