When to Visit Jeju
Climate guide & best times to travel
Best Time to Visit
Recommended timing for different travel styles.
What to Pack
Essentials and seasonal recommendations for Jeju.
Interactive checklist with shopping links for every item you need.
View Jeju Packing List →Month-by-Month Guide
Climate conditions and crowd levels for each month of the year.
Jeju in January feels hushed and raw. The sea wind bites harder than the forecast suggests. Lava tube caves hold steady temperatures year-round. Coastal light turns crystalline. Bring layers. Pack a tripod.
Highs inch up to 9°C (49°F). Lows settle near 4°C (39°F). Rain eases slightly to 58mm. Late February sparks the first camellia blooms. Splashes of red appear around Hallasan's lower forests. Spring whispers.
March signals real transition. Highs climb to 13°C (55°F). Lows hover around 6°C (43°F). Rain rises to 91mm. Rape blossom fields ignite into yellow carpets across flatlands. Cameras arrive in force. Worth the early alarm.
April may be Jeju's most photogenic month. Highs reach 18°C (64°F). Lows sit near 10°C (51°F). Rain totals 89mm, arriving in quick bursts, not gray marathons. Cherry blossoms peak in early April. Crowds increase at famous spots. Plan accordingly.
May softens into comfort. Highs hit 22°C (71°F). Lows rest at 15°C (59°F). Rain measures 97mm, scattered unevenly. Spring flowers have faded. Summer crowds haven't landed. The island glows green and alive. Underrated month.
June lets the monsoon flex. Highs reach 24°C (76°F). Lows linger at 19°C (66°F). Rain leaps to 170mm. First half still feels like late spring. Second half thickens with humidity. Afternoon downpours turn reliable. Early June remains manageable.
July is Jeju at full summer throttle. Highs hit 29°C (84°F). Lows stay around 23°C (74°F). Rain totals 211mm, arriving in sudden, heavy dumps. Beaches overflow. Resorts run at capacity. Air between storms feels tropical. Come for the coast. Expect crowds.
August is the wettest month, averaging 272mm of rain. Highs touch 30°C (86°F). Lows sit at 24°C (76°F). It's also the most popular month. Storms can be fierce. Typhoon risk peaks. Heat and humidity gang up. Mornings with clear skies and warm ocean temps still tempt. Arrive prepared.
September flips the script. Highs ease to 26°C (78°F), lows to 20°C (69°F), and 229mm of rain still arrives, mostly in the first half as the monsoon retreats. The second half often serves the clearest, most pleasant weather of the year. Early September feels like August's echo. Late September feels like another island.
October wins the popularity vote. Rainfall drops to 94mm, highs settle at 21°C (70°F), lows at 15°C (60°F), and Hallasan's slopes ignite with autumn foliage around mid-month. Trails are firm, skies are sharp, and summer haze is gone. Hikers notice the difference instantly.
November slips by quietly. Highs hover at 16°C (61°F), lows at 10°C (50°F), with only 69mm of rain. Autumn colors hang on through the first week, then the trees strip. Jeju's hallabong tangerines flood the markets. Their scent softens the cooler air.
December brings winter calm. Highs reach 11°C (51°F), lows dip to 5°C (42°F), and rainfall bottoms out at 56mm. The weather lacks postcard appeal. Yet Jeju feels peaceful and cheap. Clear winter mornings can stun. Hallasan's lower trails deliver frost-sharp views.
Ready to plan your trip to Jeju?
Now that you've got the research covered, here's where to go next.