August 18 is generally a great time to visit Busan. While there is a slight chance of rain (34%), showers are usually brief. Expect comfortable 29°C weather. Expect a bustling atmosphere in Busan right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Busan
Currency
KRW
₩ South Korean won
Language
Korean
Driving
Right side
Safety
High Safety
GPI: 1.779
Busan Weather Forecast for August 18
"Warm & Sunny. Expect average highs of 29°C. 34% chance of rain."
What to Wear in Busan in August
Based on historical data for August 18, Busan typically experiences temperatures between 23.8°C and 29°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 34% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Busan
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
29°C
Daytime Peak
Average Low
23.8°C
Nighttime Low
Feels Like
35.6°C
🔥 Heat index effect
Rain Chance
34%
Avg 3.6mm if it rains
Cloud Cover
62%
Overcast
Pressure
1009.2 hPa
Low volatility
Busan Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 94% 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
🔴 19 min to burn
Type III-IV
🟡 29 min to burn
Type V-VI
🟢 48 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
26°C
Humid/Sticky
Heat Index
35.6°C
Feels hotter
😕 Best outdoor time:
Morning hours (before 11 AM)
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
83/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~139
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Busan
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:46
☀️ Noon
12:29
🌇 Sunset
19:11
⏱️ Daylight
13h 25m
Wind Speed
16.3 km/h
Gentle breeze
Sunshine
9.7 hrs
Direct Sun (Cloud-free)
Humidity
84%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Busan
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Busan
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 acceptable. Sensitive individuals should limit prolonged outdoor exertion.
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, Busan on August 18 averages 29°C with a 34% precipitation probability. Wedding/Outdoor Event Score: 87/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Busan 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 18) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Busan Worth Visiting on August 18?
Planning a trip to Busan on August 18? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 29°C with a 34% historical precipitation risk.
✈️ Travel Logistics: Approximately 139 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 28.3°C (tropical bath). Wave conditions are generally fun waves with heights around 0.53m.
📊 Historical Extremes: The hottest August 18 recorded in the last 30 years saw temperatures hit 32.9°C in 2025, while the coldest dropped to 20.4°C in 2021.