Gwangju weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: April – June, September – October
What is the weather like in Gwangju in September?
In September, Gwangju is warm: daytime highs average 26 °C, and nights cool down to about 18 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 153 mm in total. The air is often humid and muggy. All in all, September is a good month for a holiday in Gwangju.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 47 | 76 | 90 |
| Day | 30° | 26° | 20° |
| Night | 23° | 18° | 11° |
| Sun | 6 h | 6 h | 7 h |
| Rain days | 16 | 10 | 5 |
More details for September
- Daylight
- 12 h 27 min06:14 – 18:41
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 16 daysdew point 18 °C or moreAll months
- Wind
- 13 km/haverage daily peakAll months
- Cloud cover
- 62 %on averageAll months
- Hot days
- 2 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+9Asia/Seoul
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %47 %
- Few rainy daysweight 30 %54 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Rain jacket or umbrella
Gwangju in September: quick answers
Is Gwangju hot in September?
Warm rather than hot: in September, daytime highs in Gwangju average 26 °C and nights cool to about 18 °C. On about 2 days the thermometer climbs to 30 °C or more.
Does it rain much in Gwangju in September?
Rain is frequent, with about 10 rainy days and 153 mm in total.
Gwangju month by month
The whole year in GwangjuAll destinations: South KoreaWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences