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Best time to visit Jeju: month by month
Short answer
April to early June and September to November are the best times, with highs of about 14-21°C, good hiking and clear skies. Late March and April bring cherry blossom and yellow canola. July and August are warm (24°C) and humid, with 22-23 rainy days and holiday crowds, and typhoons are possible in August and September.
Month by month
| Month | High | Low | Rainy days | Crowds |
|---|---|---|---|---|
| Jan | 7°C | 3°C | 15 | low |
| Feb | 8°C | 4°C | 12 | medium |
| Mar | 14°C | 8°C | 10 | medium |
| Apr | 17°C | 11°C | 9 | high |
| May | 22°C | 15°C | 10 | high |
| Jun | 25°C | 20°C | 16 | medium |
| Jul | 29°C | 25°C | 20 | high |
| Aug | 29°C | 25°C | 19 | very high |
| Sep | 26°C | 22°C | 18 | medium |
| Oct | 20°C | 16°C | 9 | high |
| Nov | 16°C | 10°C | 13 | medium |
| Dec | 9°C | 5°C | 16 | low |
Temperatures and rainy days: Copernicus ERA5 averages, 2021–2023. Crowd levels are our estimate.
Season by season
Spring (Mar–May)
Highs rise from 10°C in March to 14°C in April and 18°C in May; cherry blossom and canola in late March to April, with about 11-13 rainy days a month.
Summer (Jun–Aug)
Warm and humid, highs of 21-24°C and lows of 14-19°C; the jangma rains in late June-July and 18-23 rainy days a month.
Autumn (Sep–Nov)
September (21°C) can still bring typhoons; October (16°C, about 10 rainy days) is the clearest month, and November (10°C) has silver eulalia grass on the oreum.
Winter (Dec–Feb)
Windy and cold, with average highs of about 1-3°C and lows around -4 to -5°C (usually a little milder right on the coast), snow on Hallasan and tangerine season.
Events worth planning around
- Jeju Fire Festival (Jeju Deulbul Chukje) at Saebyeol Oreum, usually in March
- Jeju cherry blossom and canola festivals, late March to April
- Chuseok harvest holiday, in September or October (dates vary)
- Seollal (Lunar New Year), in January or February
When to avoid
Avoid late July and August if you dislike humidity and crowds, and keep plans flexible in August and September for typhoons.
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Common questions
What is the best month to visit Jeju?
April, May or October, with mild weather and good visibility.
When is cherry blossom on Jeju?
Usually late March to early April, slightly earlier than in Seoul, with canola fields at the same time.
When is typhoon season?
Mainly August and September; flights and ferries can be cancelled at short notice.