Jan · Feb
Mild numbers, but wind and wetness drive winter comfort
Avg low 2–6°C / high 8–12°C (wind can drop the feel) · Wet days: 8–12 per month / 50–120 mm
- • Snow accumulation in town is uncommon, but wind can make it feel much colder.
- • Rainy days can feel especially chilly when wet air and wind combine.
- • Hallasan/high areas can have snow/ice, changing travel and hiking difficulty.
Suggested outfits
- · Wind-resistant coat/puffer
- · Warm inner layers
- · Scarf/gloves for wind
A note for travelers
In Jeju winter, wind + wetness often matters more than the temperature.
Mar · Apr
Spring arrives early, but breezes can feel cool
Avg low 6–11°C / high 13–19°C · Rainy days: 8–11 per month / 70–150 mm
- • Afternoons can feel mild, while wind drops comfort on exposed routes.
- • Coasts and oreum hikes are exposed—thin layers help.
- • Air quality often feels better than inland cities, but it still varies by day.
Suggested outfits
- · Light jacket/windbreaker
- · Sweatshirts/shirts/light knits
- · Walking shoes
A note for travelers
In spring, wind is often the biggest comfort variable.
May · Jun
Pleasant May; June turns humid with monsoon rain
Avg low 13–19°C / high 20–26°C · Rainy days: 9–14 per month / 120–220 mm
- • May often feels great for coastal walks.
- • June gets wetter and more humid, slowing pacing.
- • Wet oreum trails and coastal steps can feel slippery.
Suggested outfits
- · Breathable tops
- · Light wind layer/cardigan
- · Umbrella + water-friendly footwear
A note for travelers
In monsoon season, route stability can matter more than viewpoints.
Jul · Aug
Hot, humid summer with typhoon wind/rain variables
Avg low 23–25°C / high 29–32°C · Rainy days: 10–15 per month / 200–350 mm (variable)
- • Humidity can feel heavy; windless hours feel especially sticky.
- • Typhoon influence can disrupt flights and driving comfort.
- • Sea fog can close views on some days.
Suggested outfits
- · Light summer clothing
- · Hat/sunscreen/small towel
- · Water-safe pouch/rainwear option
A note for travelers
In summer, rain/wind and flight variability can shape the whole trip.
Sep · Oct
Comfort returns; September still has typhoon variables
Avg low 16–20°C / high 22–27°C · Rainy days: 6–11 per month / 120–220 mm
- • September can swing between lingering warmth and cooler nights.
- • October often feels best for oreum and coastal walking.
- • Typhoon influence can still bring wind and heavy rain at times.
Suggested outfits
- · T-shirt + light outer (Sep)
- · Long sleeves/light knits (Oct)
- · Comfortable sneakers
A note for travelers
Autumn is easy to over-walk—shoes matter.
Nov · Dec
Early winter: wind and rain can feel sharper
Avg low 6–10°C / high 12–16°C · Rainy days: 8–12 per month / 60–140 mm
- • Wind can make evenings feel noticeably cooler.
- • Rainy days can feel colder due to wet air and breeze.
- • Hallasan/high areas can feel winter-like earlier.
Suggested outfits
- · Wind-resistant coat/thicker jacket
- · Warm inner layers
- · Scarf
A note for travelers
In late autumn, wind protection often decides comfort.
