August 3 is generally a great time to visit Jeju Island. While there is a slight chance of rain (32%), showers are usually brief. Expect comfortable 30°C weather. Expect a bustling atmosphere in Jeju Island right now—this is when the city truly comes alive with visitors.
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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 August 3
"Warm & Sunny. Expect average highs of 30.1°C. 32% chance of rain."
What to Wear in Jeju Island in August
Based on historical data for August 3, Jeju Island typically experiences temperatures between 26.1°C and 30.1°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 32% 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
- T-Shirt
- Light Clothing
- Umbrella
Average High
30.1°C
Daytime Peak
Average Low
26.1°C
Nighttime Low
Feels Like
39.5°C
🔥 Heat index effect
Rain Chance
32%
Avg 3mm if it rains
Cloud Cover
52%
Light drizzle
Pressure
1008 hPa
Low volatility
Jeju Island Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 86% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 19:00
Type I-II
🔴 17 min to burn
Type III-IV
🟡 26 min to burn
Type V-VI
🟢 43 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
27.3°C
Humid/Sticky
Heat Index
39.5°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Marine Conditions
Jellyfish Warning
High water temps may attract jellyfish swarms.
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in South Korea
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~246
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Jeju Island
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:48
☀️ Noon
12:41
🌇 Sunset
19:34
⏱️ Daylight
13h 45m
Wind Speed
15.3 km/h
Gentle breeze
Sunshine
11.0 hrs
Direct Sun (Cloud-free)
Humidity
85%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Jeju Island
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Jeju Island
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Mild discomfort possible for arthritic conditions.
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 August 3 averages 30.1°C with a 32% precipitation probability. Wedding/Outdoor Event Score: 86/100."
— 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
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (August 3) in other destinations
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📍 Is Jeju Island Worth Visiting on August 3?
Planning a trip to Jeju Island on August 3? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 30.1°C with a 32% historical precipitation risk.
✈️ Travel Logistics: Approximately 246 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 29.4°C (hot soup). Wave conditions are generally fun waves with heights around 0.73m.
📊 Historical Extremes: The hottest August 3 recorded in the last 30 years saw temperatures hit 32.5°C in 2017, while the coldest dropped to 25°C in 2020.