Cool
Average highs are around 11°C, so pack for cooler days.
March verdict
Poor for holiday weather
Average highs are around 11°C, so pack for cooler days. Sunshine averages 6h per day, enough for a balanced month. Rainfall averages 94mm, so some wet days are possible.
Monthly averages
Temp
11°C
Rain
94mm
Sun
6h
Sea
15°C
Weather score
27
Poor
Cool
Average highs are around 11°C, so pack for cooler days.
Showers
Rainfall averages 94mm, so some wet days are possible.
Some sun
Sunshine averages 6h per day, enough for a balanced month.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Compare Jeju-do, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
March11°C average high
March is on the cooler side of Jeju-do's year, useful if you prefer less intense daytime heat.
Warmest monthsJuly to September
This stretch sets the upper range for average daytime heat.
March94mm average rain
March sits on the drier side of Jeju-do's year, which helps with sightseeing and transfers.
Driest monthsJanuary to March and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
March6 hours average sun
March sits close to Jeju-do's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay and August
This stretch has the strongest sunshine in the monthly averages.
March15°C average sea
March is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJuly to September
Sea temperatures are usually near 25°C in this stretch, so swimming comfort is at its strongest.
March27 weather score
March is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJuly to October
These months have the strongest weather score in the monthly averages.