Best Time to Visit
Best Time to Visit Jeju
🇰🇷 Jeju, South Korea · Asia
Based on 30-year climate data (1991-2020) from Open-Meteo
Recommended Travel Months
Jan
7°
4°
Fair
Feb
8°
4°
Good
Mar
11°
7°
Good
Apr
16°
11°
Great
May
20°
15°
Great
Jun
23°
19°
Good
Jul
27°
24°
Good
Aug
28°
25°
Good
Sep
25°
22°
Good
Oct
20°
17°
Great
Nov
15°
11°
Great
Dec
10°
6°
Good
Month-by-Month Weather in Jeju
| Month | High | Low | Rain Days | Sunshine | Humidity | UV | Rating | Details |
|---|---|---|---|---|---|---|---|---|
| January | 7°C | 4°C | 9 | 5h | 70% | 2 | Fair | View |
| February | 8°C | 4°C | 8 | 7h | 70% | 2 | Good | View |
| March | 11°C | 7°C | 10 | 8h | 70% | 6 | Good | View |
| AprilRecommended | 16°C | 11°C | 9 | 9h | 70% | 6 | Great | View |
| MayRecommended | 20°C | 15°C | 10 | 9h | 70% | 9 | Great | View |
| June | 23°C | 19°C | 13 | 8h | 70% | 9 | Good | View |
| July | 27°C | 24°C | 16 | 9h | 70% | 9 | Good | View |
| August | 28°C | 25°C | 17 | 10h | 70% | 9 | Good | View |
| September | 25°C | 22°C | 13 | 8h | 70% | 6 | Good | View |
| OctoberRecommended | 20°C | 17°C | 7 | 9h | 70% | 6 | Great | View |
| NovemberRecommended | 15°C | 11°C | 8 | 7h | 70% | 2 | Great | View |
| December | 10°C | 6°C | 8 | 6h | 70% | 2 | Good | View |
Data source: Open-Meteo ERA5 reanalysis archive, 30-year historical normals (1991-2020). Temperatures in Celsius. Sunshine hours are daily averages.
Seasonal Guide to Jeju
Spring (March to May)
Avg: 16°C high, 11°C low
Spring in Jeju brings gradually mild temperatures. Daytime highs reach around 16°C (61°F) while nights cool to 11°C (52°F). Expect occasional showers, so pack a light rain jacket.
Summer (June to August)
Avg: 26°C high, 23°C low
Summer is the warmest season in Jeju, with temperatures reaching 26°C (79°F). Comfortable warmth makes this a popular time for tourists, though accommodation prices tend to peak. Long daylight hours and abundant sunshine provide plenty of time to explore.
Fall (September to November)
Avg: 20°C high, 17°C low
Fall in Jeju is one of the best times to visit. Temperatures settle around 20°C (68°F) during the day and 17°C (63°F) at night. Rainfall increases slightly, but comfortable temperatures make up for it. Fewer tourists mean better prices.
Winter (December to February)
Avg: 8°C high, 5°C low
Winter in Jeju brings the coolest weather of the year. Layers are essential, and some outdoor attractions may have reduced hours. However, hotel prices typically drop and popular sites are less crowded.
When to Avoid Jeju
The least favorable time to visit Jeju is January. During this period, you can expect cold weather.
January
Challenges: cold weather
Note: visiting during off-peak months often means lower prices, fewer crowds, and a more authentic experience. Consider your priorities when planning your trip.
What to Pack for Jeju
Packing recommendations for visiting Jeju during the best travel months (October, April, May), when temperatures range from 14°C to 19°C:
- +Medium-weight layers and a warm jacket
- +Long pants and closed-toe shoes
- +A compact umbrella or light rain jacket
- +Sunscreen (SPF 30+), sunglasses, and a wide-brim hat
- +Reusable water bottle
- +Universal power adapter
Jeju Year-Round Climate Overview
Jeju has a temperate oceanic climate (Koppen classification: Cfa). The warmest month is August with highs of 28°C, while the coldest month is January at just 7°C. Annual rainfall averages 1566mm across approximately 128 rain days.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 7 | 8 | 11 | 16 | 20 | 23 | 27 | 28 | 25 | 20 | 15 | 10 |
| Low °C | 4 | 4 | 7 | 11 | 15 | 19 | 24 | 25 | 22 | 17 | 11 | 6 |
| Rain Days | 9 | 8 | 10 | 9 | 10 | 13 | 16 | 17 | 13 | 7 | 8 | 8 |
| Rain mm | 62 | 64 | 99 | 121 | 129 | 234 | 225 | 227 | 188 | 92 | 66 | 59 |
| Sun h/day | 5 | 7 | 8 | 9 | 9 | 8 | 9 | 10 | 8 | 9 | 7 | 6 |
| Humidity % | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
| UV Index | 2 | 2 | 6 | 6 | 9 | 9 | 9 | 9 | 6 | 6 | 2 | 2 |
Compare Nearby Destinations
Considering alternatives to Jeju? Compare the best travel months for nearby cities:
Frequently Asked Questions
What is the best month to visit Jeju?+
The best time to visit Jeju is October, April, May. During these months, temperatures average 19°C (66°F) with 9 hours of daily sunshine and only 9 rain days per month. These conditions offer the most comfortable weather for sightseeing and outdoor activities.
What is the worst time to visit Jeju?+
The least ideal time to visit Jeju is January. During this period, you can expect cold weather. While Jeju can still be visited during this time (often with fewer crowds and lower prices), the weather may limit outdoor activities.
Is Jeju good to visit in summer?+
Summer in Jeju (June to August) brings temperatures of 26°C (79°F) highs and 23°C (73°F) lows, with about 9 hours of sunshine and 15 rain days per month. This is generally a good time to visit.
What is the rainy season in Jeju?+
The rainy season in Jeju runs from July to August, when average rain days increase to 17 days per month. Total monthly precipitation during this period averages 226mm.
What should I pack for Jeju?+
When visiting Jeju during the best travel months (October, April, May), pack medium-weight layers, a warm jacket, long pants, and closed-toe shoes. A waterproof jacket and umbrella are essential. Sunscreen and sunglasses are recommended, especially given the high UV index.
Is October a good time to visit Jeju?+
Yes, October is one of the best months to visit Jeju. Expect average highs of 20°C (68°F), 9 hours of daily sunshine, and only 7 rain days. The weather is ideal for exploring the city, visiting outdoor attractions, and enjoying local activities.
Detailed Monthly Weather for Jeju
For a complete day-by-day weather breakdown including packing lists, activities, and local events, explore each month individually:
January
February
March
April
May
June
July
August
September
October
November
December
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