Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
Weather Guide
Yeosu, South Korea Average Monthly Weather
Weather score43Mixed annual avg
Best months: September, August, October
Across the year, average daytime temperatures are around 19°C, sunshine averages 6.5h per day, and rainfall totals about 1627mm. Sea temperatures average 17°C across the year.
Annual weather
Annual averages
Temp
19°C
Rain
1627mm
Annual total
Sun
6.5h
Sea
17°C
Weather score
43
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 266mm, so showers are a real planning factor.
Some sun
Sunshine averages 7.1h per day, enough for a balanced month.
Swimmable
Sea temperatures average 26°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Yeosu, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August30°C average high
August is one of Yeosu's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August266mm average rain
August is one of Yeosu's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to March and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August7.1 hours average sun
August is brighter than Yeosu's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMarch to May and August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August26°C average sea
August is one of Yeosu's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.
Weather score
August58 weather score
August scores above Yeosu's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsAugust to September
These months have the strongest weather score in the monthly averages.
