Weatheo

Gwangju weather by month

Warmest month

August

31°C average high

Coolest month

January

-3°C average low

Wettest month

July

156 mm of rain

Driest month

January

15 mm of rain

Average temperature and rainfall in Gwangju by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January5°C-3°C-20°C / 14°C
15 mm
74%11 km/h
February7°C-2°C-12°C / 17°C
20 mm
73%11 km/h
March13°C2°C-9°C / 23°C
67 mm
72%11 km/h
April18°C7°C0°C / 27°C
72 mm
69%10 km/h
May23°C12°C5°C / 29°C
45 mm
73%11 km/h
June26°C18°C9°C / 32°C
65 mm
77%9 km/h
July29°C22°C16°C / 35°C
156 mm
85%9 km/h
August31°C23°C19°C / 36°C
104 mm
83%8 km/h
September27°C19°C8°C / 33°C
65 mm
81%8 km/h
October20°C11°C5°C / 28°C
45 mm
77%9 km/h
November14°C5°C-10°C / 22°C
43 mm
74%10 km/h
December7°C-1°C-9°C / 15°C
30 mm
75%11 km/h

Frost and snow-likely months in Gwangju

Nights in Gwangju average 2°C or below in 3 months (January, February and December). January, February and December combine average lows at or below 0°C with 10 mm or more of monthly precipitation, so precipitation then is likely to fall as snow. The coldest month is January with an average low of -3°C and a record low of -20°C.

  • January: average low -3°C, record low -20°C, 15 mm of precipitation — snow-likely
  • February: average low -2°C, record low -12°C, 20 mm of precipitation — snow-likely
  • December: average low -1°C, record low -9°C, 30 mm of precipitation — snow-likely

These records carry temperature and precipitation, not snowfall totals.

Best time to visit Gwangju

The most comfortable time to visit Gwangju is generally May to June and September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around July, totalling about 726 mm a year.

Travellers who prefer heat should aim for August, when highs average 31°C. July is the month to avoid if rain would spoil your plans — it averages 156 mm, roughly 11× the rainfall of the driest month (January).

Gwangju climate: your questions

Does Gwangju have snow?

Yes, in winter: January, February and December average lows at or below 0°C with 10 mm or more of monthly precipitation, so some of it falls as snow. The coldest month is January (average low -3°C, record low -20°C). Our records carry temperature and precipitation, not snowfall totals. What is falling now: Gwangju weather today.

When is it going to snow in Gwangju this month?

Gwangju's winter months average lows of -1°C in December, -3°C in January and -2°C in February, with about 65 mm of precipitation across the three; 3 of them sit at or below 0°C, so snow is likely on the colder days. The records hold no snowfall totals. The next 15 days: Gwangju 10-day forecast.

Which months are best for visiting Gwangju?

May to June and September are the most comfortable months in Gwangju, with highs near 25°C. August is the warmest month, averaging 31°C by day; July is the wettest, with 156 mm; and January is the coolest, with lows near -3°C. What it is doing today: Gwangju weather today.

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Gwangju forecast for what is happening now.

Nearest cities: Monthly climate

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