2026 Climate Averages

Weather: Jeju Island — June

It's a rainy period, but great for indoor activities, museums, and lower prices. Recommended month to visit.

☔ Climate Overview

June is a wet time to visit Jeju Island. Warm weather with highs of 25°C—great for outdoor activities. Rain is common, so pack an umbrella. As peak season, expect higher prices and more tourists. Sea temperature of 22°C is refreshing but swimmable.

7.8
GoTripzi Score Great

Based on weather comfort, crowds, prices, and activity options

Avg High

25°C

Avg Low

21°C

Rainy days

13days

Daylight

14.4h

Feels like 29°C / 23°C — humidity makes it feel warmer

Rainfall

213mm

Sunshine

8h/day

Humidity

85%

Very Humid
Sun Strength

7.2

Very High
Wind

15 km/h (gusts 35)

Sea Temp

22°C 💧 Refreshing

Is June a good time to visit Jeju Island?

It's a rainy period, but great for indoor activities, museums, and lower prices.

Now

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Feels like --
Wind --
Humidity --
UV Index --
Local time —

Air Quality

Travel Context

  • Crowds
    Quiet
  • Travel Costs Shoulder Rates

Daylight

Sunrise

05:24

Sunset

19:46

14.4h daylight

Visiting Jeju Island in June: Pros & Cons

Pros

  • Comfortable temperatures for sightseeing
  • Long daylight hours maximize sightseeing time

Cons

  • Peak season — expect crowds and higher prices

Things to Do in June

Recommended for This Weather

🏊 Swimming & beach activities
🤿 Snorkeling & water sports
🏖️ Beach relaxation & sunbathing
🏛️ Museums & galleries
🍳 Cooking classes & food tours
🎭 Cultural tours & local experiences

Jeju Island Weather by Month

Month Avg High Avg Low Rain Sunshine Humidity UV Index Crowds Condition
Jan 10°C 5°C 9d (59mm) 5.7h
70% Humid
3.3 Moderate
Good
Feb 10°C 6°C 9d (79mm) 6.3h
71% Humid
4.4 Moderate
Good
Mar 14°C 9°C 10d (98mm) 7.6h
72% Humid
6.2 High
Good
Apr 18°C 12°C 8d (93mm) 8.9h
72% Humid
7.8 Very High
Excellent
May 21°C 16°C 9d (129mm) 9.2h
77% Humid
8.2 Very High
Excellent
Jun Current 25°C 21°C 13d (213mm) 8h
85% Very Humid
7.2 Very High
Wet
Jul 29°C 25°C 18d (254mm) 8.4h
87% Very Muggy
6.8 High
Wet
Aug 30°C 26°C 19d (177mm) 9.9h
83% Very Muggy
7.1 Very High
Wet
Sep 28°C 24°C 17d (275mm) 7.9h
81% Very Humid
5.6 High
Excellent
Oct 22°C 18°C 7d (48mm) 8.2h
72% Humid
5.2 High
Excellent
Nov 17°C 13°C 7d (97mm) 6.9h
70% Humid
3.9 Moderate
Good
Dec 11°C 7°C 7d (31mm) 5.8h
68% Humid
3 Moderate
Good

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4.712.Sep
4.3

Where to Stay

See hotels, apartments & rentals around Jeju Island – live prices from Booking.com, Expedia, Vrbo and more

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Jeju Island

Volcanic island, including waterfalls, Hallasan Mountain hike and Seongsan Sunrise Peak, lava tubes, beaches, and Hallasan crater.

View Full Destination Guide

What to Pack for June

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces. A waterproof jacket and shoes are non-negotiable — showers are frequent. Don't forget a wide-brimmed hat and high-SPF sunscreen — the sun is strong.

Warm Quiet

🎒Personalized Packing List

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Your Packing List

📋Essentials
👕Clothing
👟Footwear
🎒Accessories
🧴Toiletries & Health

Planning a trip to Jeju Island?

🔥 Peak season — book early for best rates

Frequently Asked Questions

Is June a good time to visit Jeju Island?
June is typically wet for visiting Jeju Island, with average highs of 25°C and around 13 rainy days. Plan your activities accordingly—outdoor sightseeing is best on dry days, while rainy days are perfect for museums and indoor attractions.
Does it get cold at night in Jeju Island in June?
Nights stay pleasantly warm in Jeju Island during June, around 21°C. Light evening wear is sufficient, and outdoor dining is very comfortable. Many locals and visitors enjoy late-night walks and outdoor activities after sunset.
What should I pack for Jeju Island in June?
With highs of 25°C and lows of 21°C in June, we recommend: Compact umbrella, Waterproof jacket/shell, Lightweight breathable clothes, Sunscreen SPF 30+. Layering is key as temperatures can vary between air-conditioned interiors and outdoors. Comfortable walking shoes are essential for cobblestone streets.
Does it rain a lot in Jeju Island in June?
Jeju Island typically sees around 13 rainy days in June. Rain is usually in the form of brief showers rather than all-day downpours, so a compact umbrella is sufficient. Mornings tend to be drier, making them ideal for outdoor sightseeing.
Can you swim in Jeju Island in June?
June is suitable for swimming in Jeju Island, though the water may feel refreshing at first. Air temperatures average 25°C, and most swimmers find it enjoyable once they're in. Midday is usually the warmest time for a dip.
How many hours of daylight are there in Jeju Island in June?
In June, Jeju Island gets approximately 14.4 hours of daylight per day. This affects how much sightseeing you can fit in—longer days mean more time for outdoor activities, while shorter days are perfect for cozy museum visits and early dinners.
Is June peak season in Jeju Island?
Yes, June is peak season in Jeju Island. Expect higher prices for accommodation and more crowds at popular attractions, but also the best weather conditions. Book hotels and major attractions in advance to secure availability and better rates.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: Asia/Seoul)

Last Updated: February 2026

More Jeju Island Guides

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