Yeosu weather by month
Warmest month
August
29°C average high
Coolest month
January
1°C average low
Wettest month
July
156 mm of rain
Driest month
January
22 mm of rain
Average temperature and rainfall in Yeosu by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 7°C | 1°C | -9°C / 15°C | 22 mm | 79% | 18 km/h |
| February | 8°C | 2°C | -7°C / 16°C | 47 mm | 77% | 18 km/h |
| March | 12°C | 6°C | -1°C / 16°C | 104 mm | 76% | 16 km/h |
| April | 16°C | 10°C | 6°C / 21°C | 94 mm | 73% | 14 km/h |
| May | 20°C | 15°C | 9°C / 30°C | 82 mm | 76% | 13 km/h |
| June | 24°C | 18°C | 14°C / 33°C | 108 mm | 82% | 13 km/h |
| July | 27°C | 22°C | 19°C / 36°C | 156 mm | 87% | 12 km/h |
| August | 29°C | 24°C | 20°C / 37°C | 126 mm | 84% | 11 km/h |
| September | 26°C | 21°C | 16°C / 31°C | 101 mm | 84% | 15 km/h |
| October | 21°C | 15°C | 11°C / 26°C | 60 mm | 79% | 15 km/h |
| November | 14°C | 9°C | 2°C / 21°C | 36 mm | 77% | 14 km/h |
| December | 8°C | 3°C | -6°C / 17°C | 22 mm | 80% | 18 km/h |
Frost and snow-likely months in Yeosu
Nights in Yeosu average 2°C or below in 2 months (January and February). No month combines freezing average lows with 10 mm or more of precipitation, so snow is uncommon. The coldest month is January with an average low of 1°C and a record low of -9°C.
- January: average low 1°C, record low -9°C, 22 mm of precipitation
- February: average low 2°C, record low -7°C, 47 mm of precipitation
These records carry temperature and precipitation, not snowfall totals.
Best time to visit Yeosu
The most comfortable time to visit Yeosu is generally June and September to October, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around July, totalling about 958 mm a year.
Travellers who prefer heat should aim for August, when highs average 29°C. July is the month to avoid if rain would spoil your plans — it averages 156 mm, roughly 7× the rainfall of the driest month (January).
Yeosu climate: your questions
Does it snow in Yeosu?
Rarely: nights dip to 2°C or below only in January and February, and the coldest month, January, averages a low of 1°C (record low -9°C), so snow is uncommon. Our records carry temperature and precipitation, not snowfall totals. What is falling now: Yeosu weather today.
When is it going to snow in Yeosu this month?
Yeosu's winter months average lows of 3°C in December, 1°C in January and 2°C in February, with about 92 mm of precipitation across the three; 0 of them sit at or below 0°C, so snow is unlikely. The records hold no snowfall totals. The next 15 days: Yeosu 10-day forecast.
Which months are best for visiting Yeosu?
June and September to October are the most comfortable months in Yeosu, with highs near 23°C. August is the warmest month, averaging 29°C by day; July is the wettest, with 156 mm; and January is the coolest, with lows near 1°C. What it is doing today: Yeosu weather today.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Yeosu forecast for what is happening now.
