March 27 is generally a great time to visit Jeju Island. While there is a slight chance of rain (29%), showers are usually brief. Expect comfortable 14°C weather. As it's peak season for Jeju Island, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Jeju Island
Currency
KRW
₩ South Korean won
Language
Korean
Driving
Right side
Safety
High Safety
GPI: 1.779
Jeju Island Weather Forecast for March 27
"Mild & Comfortable. Expect average highs of 14°C. 29% chance of rain."
What to Wear in Jeju Island in March
Based on historical data for March 27, Jeju Island typically experiences temperatures between 8.1°C and 14°C. We recommend packing light jacket, long pants to stay comfortable. With a 29% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Jeju Island
Smart Suitcase
- Light Jacket
- Long Pants
Average High
14°C
Daytime Peak
Average Low
8.1°C
Nighttime Low
Feels Like
13.7°C
🌤️ Feels accurate
Rain Chance
29%
Avg 1.9mm if it rains
Cloud Cover
58%
Overcast
Pressure
1018.1 hPa
Medium volatility
Jeju Island Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
06:00 - 10:00
16:00 - 18:00
Type I-II
🔴 27 min to burn
Type III-IV
🟡 41 min to burn
Type V-VI
🟢 68 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
9°C
Dry air
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in South Korea
Flight Traffic
High
87/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~214
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Jeju Island
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:30
☀️ Noon
12:40
🌇 Sunset
18:50
⏱️ Daylight
12h 20m
Wind Speed
17.4 km/h
Gentle breeze
Sunshine
7.8 hrs
Direct Sun (Cloud-free)
Humidity
72%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Jeju Island
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Jeju Island
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟢 Moderate
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
Typhoon Risk
Year-round risk present
Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Jeju Island on March 27 averages 14°C with a 29% precipitation probability. Wedding/Outdoor Event Score: 88/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Jeju Island Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 2
14.7°C • 25% rain
Score
93
April 1
14.6°C • 22% rain
Score
92
April 3
14.8°C • 29% rain
Score
92
💡 Moving your event by a few days could significantly improve weather conditions
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📍 Is Jeju Island Worth Visiting on March 27?
Planning a trip to Jeju Island on March 27? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 14°C with a 29% historical precipitation risk.
✈️ Travel Logistics: Approximately 214 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 10 vaccinations are recommended for South Korea, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 14.1°C (polar plunge). Wave conditions are generally surfers only with heights around 1.32m.
📊 Historical Extremes: The hottest March 27 recorded in the last 30 years saw temperatures hit 24°C in 2025, while the coldest dropped to 5.7°C in 2017.