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Jeju Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Jeju year round climate

  • Spring (March–May): Average 51–64°F, mild and comfortable climate with abundant rainfall, suitable for hiking and flower viewing. Common activities: Hiking, flower viewing, cycling. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 72–83°F, hot and humid, with more rainfall and occasional typhoons. Common activities: Beach activities, water sports, exploring volcanic terrain. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 57–77°F, pleasant climate with higher rainfall, especially in September. Common activities: Maple viewing, hiking, enjoying local cuisine. Recommended clothing: Comfortable jacket, long-sleeved shirt, comfortable shoes.
  • Winter (December–February): Average 43–46°F, cold and dry, with occasional snowfall. Common activities: Onsen bathing, visiting indoor attractions, enjoying warm food. Recommended clothing: Warm jacket, sweater, scarf, hat, gloves.

Jeju climatological average

Annual average temperature: approx. 62.6°F / Annual rainfall: approx. 1705 mm / Summer humidity: 70%–80% / Rainiest month: September

Jeju monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
43.9°F
99
February
45.1°F
97.5
March
51.4°F
114.9
April
58.8°F
121.6
May
64.6°F
148.8
June
72.5°F
215.7
July
81.7°F
207.3
August
83.3°F
109.5
September
77.5°F
225.8
October
66.6°F
87.8
November
57.9°F
201.5
December
46.8°F
76

Jeju weather for the next seven days

5/15
Friday
Sunny
72.4°F/62.4°F
5/16
Saturday
Sunny
72.6°F/61°F
5/17
Sunday
Sunny
73.3°F/61.5°F
5/18
Monday
Sunny
74.6°F/62.2°F
5/19
Tuesday
Partly Cloudy
72.7°F/62.5°F
5/20
Wednesday
Patchy rain nearby
66.3°F/65.4°F
5/21
Thursday
Patchy rain nearby
70°F/66.3°F

Jeju Frequently Asked Questions and Useful Information for Travel

What is the best month to go to Jeju Island?

The ideal times to visit Jeju Island are Spring (April-May) and Autumn (September-October). These months offer pleasant weather perfect for exploring, vibrant blooming flowers in spring, and comfortable temperatures for enjoying the coastline in fall. Summer (June-August) is also popular for beach activities and festivals, though it can be warmer and busier.

How many days in Jeju is enough?

For a first-time visitor to Jeju Island, a minimum of 3 to 4 days is recommended to see the highlights. To experience the diverse attractions more thoroughly and enjoy a leisurely pace, 5 to 7 days is ideal. This longer duration allows for deeper exploration of natural wonders like Hallasan Mountain and coastal areas, as well as experiencing local culture without feeling rushed.

Can US citizens go to Jeju Island?

US citizens can generally enter Jeju Island visa-free for tourism. However, it is essential to check the latest K-ETA (Korea Electronic Travel Authorization) requirements for your specific entry and ensure you meet all necessary documentation for travel to South Korea.

Is Jeju Island a nice place to visit?

Jeju Island is a unique and beloved destination within South Korea, often referred to as 'South Korea's Hawaii'. It offers a relaxing and romantic holiday experience with stunning natural landscapes, volcanic craters, beautiful beaches, and a distinct local culture that makes it a wonderful place to visit.

What are some popular activities on Jeju Island?

Popular activities on Jeju Island include hiking Hallasan Mountain, exploring the volcanic cones (oreums) like Seongsan Ilchulbong, visiting stunning waterfalls such as Cheonjiyeon and Jeongbang, relaxing on beautiful beaches like Hyeopjae, and experiencing the unique local cuisine and culture.