Jeju May weather
Jeju, South Korea · May
Comfortable weather that makes you walk longer
May often feels low-humidity and stable, making oreum hikes and Olle trails feel comfortable. Breezes can feel refreshing.
Because it feels easy, outdoor time can stretch. Shoes and UV protection can change how tired you feel.
May averages at a glance
Average low
around 14–16°C
Average high
around 20–24°C
Average rainfall
around 90–160 mm
Wet days
about 7–10 days
What to wear in May in Jeju
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Short sleeves or light long sleeves with a thin wind layer works well.
- • Hat and sunscreen help on longer outdoor routes.
Travel tips for visiting Jeju in May
- • Oreum hikes can mean long sun exposure—UV protection helps.
- • Evenings can feel cooler with wind; thin layers stay useful.
May weather in Jeju — FAQ
Q. Can you swim in May?
A. It depends, but many people still find the water cold. Coastal walks are usually very comfortable.
Q. Are bugs an issue?
A. It depends on routes; basic repellent can help for longer grassland or forest segments.
Explore Jeju
These pages are connected so you can compare conditions and decide for yourself.