What is the weather like in Jeju Island throughout the year?

Jeju Island experiences varying weather throughout the year. The warmest month is August with average highs of 29°C. The coolest month is January.

What is the weather like in Jeju Island in October?

Jeju Island in October scores 57/100 based on 30 years of climate data. Good option with minor considerations.

Who should visit Jeju Island in October?

October in Jeju Island is ideal for: Beach lovers, Families with children, Outdoor enthusiasts, Cultural tourists, Honeymoon couples.

Best Time to Visit Jeju Island | 30-Year Weather Analysis

Why October is the Best Time to Visit Jeju Island

Is October a Good Time to Visit Jeju Island?

👌Good option with minor considerations(57/100)

Short Answer

Storm season alert for Jeju Island in October: beyond the 21°C, 24% rain averages, hurricane risk requires travel insurance and schedule flexibility.

Decision Factors

Typhoon season active

Western Pacific zone - expect potential typhoon activity

Vaccinations required

Yellow Fever

Peak tourist season

98% of annual peak - expect crowds and peak prices

Ideal temperature range

20.8°C - perfect for sightseeing and outdoor activities

Pleasant swimming conditions

25.3°C sea temperature

Health precautions needed

Be aware of: Leptospirosis, Avian/Bird Flu, Hantavirus

Good For

🏖️
Beach lovers
25.3°C warm seas and 24% rain probability
👨‍👩‍👧‍👦
Families with children
Comfortable 20.8°C temperatures and low 24% rain risk
🥾
Outdoor enthusiasts
Ideal hiking conditions: 20.8°C, 24% rain chance
🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💑
Honeymoon couples
Wedding score 96/100 with romantic weather conditions

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere
👴
Elderly travelers
75% humidity creates difficult conditions
💼
Business travelers
Storm season may cause flight disruptions

Warmest

August

29°C avg

Coolest

January

8°C avg

Driest

December

23% rain

Wettest

August

44% rain

Planning Your Trip to Jeju Island, South Korea

Wondering when is the best time to visit Jeju Island? Based on our analysis of 30 years of NASA satellite weather data, the ideal months to travel to Jeju Island are October, May, November. During these months, you'll experience optimal temperatures around 21°C with only 24% chance of rain.

The Jeju Island climate varies throughout the year. August is the hottest month with average highs of 29°C, while January is the coldest at 8°C. If you're planning outdoor activities or sightseeing in Jeju Island, avoid August when rainfall peaks at 44% probability.

For the best Jeju Island weather experience, we recommend visiting during December for the driest conditions or the shoulder months of October and May for a perfect balance of weather and fewer crowds.

Jeju Island Weather by Month: Climate Guide

Click any month to explore detailed daily forecasts for Jeju Island

🏆 85-100: Excellent👍 70-84: Great👌 55-69: Good🤔 40-54: Fair⚠️ 0-39: Challenging

When to Visit Jeju Island: Travel Style Guide

Personalized Jeju Island travel recommendations based on 30-year weather data

Beach Lovers

Warmest weather with ideal sea temperatures for swimming

September

Budget Travelers

Shoulder season with good weather and lower prices

JanuaryMarchApril

Avoiding Crowds

Fewer tourists with acceptable weather conditions

JanuaryFebruaryMarch

Photography

Best light conditions with clear skies

DecemberOctoberNovember

Winter Escape

Escape the cold with warmest temperatures

JuneJulyAugust

Honeymoon

Perfect conditions for a romantic getaway

MayJuneOctober

Jeju Island Weather FAQ: Your Questions Answered

What is the best time to visit Jeju Island?

Based on 30 years of weather data, the best months to visit Jeju Island are October, May, November. These months offer the optimal combination of pleasant temperatures (21°C avg) and low rainfall (24% chance).

When is the hottest time of year in Jeju Island?

August is historically the warmest month in Jeju Island with average highs of 29°C. If you prefer cooler weather, consider visiting in January when temperatures average around 8°C.

When is the rainy season in Jeju Island?

August typically sees the most rainfall in Jeju Island with a 44% chance of rain. For the driest conditions, plan your visit in December when rain probability drops to just 23%.

How accurate is the Jeju Island weather forecast?

Our Jeju Island climate analysis is based on 30 years of NASA POWER satellite observations (1995-2024), providing highly accurate historical averages. While weather can vary year to year, these long-term patterns are excellent indicators for planning your trip to Jeju Island.

What should I pack for Jeju Island?

Packing depends on when you visit. In August (warmest month), pack light summer clothes for 29°C weather. In January (coolest month), bring layers for 8°C temperatures. During August, pack rain gear as there's a 44% chance of rain.

Is Jeju Island good for a destination wedding?

Yes! The best months for an outdoor wedding in Jeju Island are December (only 23% rain chance) and October for optimal weather conditions. Avoid August when rain probability peaks at 44%.