When to go · Yanggu
Yanggu in September
Great month. Inside Yanggu's best window: Apr–Jun, Sep–Oct.
Key facts
- Verdict
- Great
- Temperature
- 24°C (75°F)75°F (24°C) / 14°C (57°F)57°F (14°C)
- average high / low
- Rain days
- 10
- Crowds
- Medium
- South Korea overall
- Prices
- Medium
- South Korea overall
Verdict
Inside Yanggu's best window: Apr–Jun, Sep–Oct.
Is another month better than September?
No other month rates higher than September for Yanggu in this guide.
Weather in September
- YangguHighs around 24 °C (75 °F), lows around 14 °C (57 °F), rain on about 10 daysHighs around 75 °F (24 °C), lows around 57 °F (14 °C), rain on about 10 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 Yanggu, side by side.
Verdict
Sep: Great
Apr: Great
Daytime high
Sep: 24 °C (75 °F)75 °F (24 °C)
Apr: 18 °C (64 °F)64 °F (18 °C)
Night low
Sep: 14 °C (57 °F)57 °F (14 °C)
Apr: 5 °C (41 °F)41 °F (5 °C)
Rain days
Sep: 10
Apr: 9 (better)
Crowds
Sep: Medium
Apr: High
Prices
Sep: Medium
Apr: High
Festivals listed
Sep: 1
Apr: 0
September: Inside Yanggu's best window: Apr–Jun, Sep–Oct.
April: Inside Yanggu's best window: Apr–Jun, Sep–Oct.
Yanggu: figures are long-term averages from this guide, not a forecast.
What to pack
- A rain jacket or umbrella and shoes that dry fast