30YearWeather
Busan, January 20
Busan street view during January
Historical Weather Analysis

Busan Weather on January 20 — Best Time to Visit?

Based on 30 years of historical data, we have the answer.

partly-cloudy-day

7.2°C

High

-0.6°C

Low

12%

Rain

❄️ Feels like 4.1°C (wind chill)

clear-day
YES, IT'S PARADISE
Peak Season

January 20 is statistically one of the best days of the year in Busan. With minimal rain risk (12%) and pleasant highs of 7°C, it's ideal for outdoor adventures. As it's peak season for Busan, we recommend booking your stay well in advance to secure the best rates.

Currency

KRW

South Korean won

Language

Korean

Driving

Right side

Safety

High Safety

GPI: 1.779

Busan Weather Forecast for January 20

"Mild & Comfortable. Expect average highs of 7.2°C. 12% chance of rain."

What to Wear in Busan in January

Based on historical data for January 20, Busan typically experiences temperatures between -0.6°C and 7.2°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (12% rain probability), but checking the forecast before heading out is always wise.

Complete Packing Guide

Weekly breakdown & essential items for Busan

View Guide

Smart Suitcase

  • Heavy Coat
  • Scarf
  • Gloves

Average High

extreme-hot

7.2°C

Daytime Peak

Average Low

extreme-cold

-0.6°C

Nighttime Low

Feels Like

partly-cloudy-day

4.1°C

❄️ Slightly colder

Rain Chance

rain

12%

Avg 0.5mm if it rains

Cloud Cover

cloudy

47%

Overcast

Pressure

pressure

1022.9 hPa

Medium volatility

Busan Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

92%Highly Predictable

Based on 10 years of data

Temperature
±2.6°CModerate
Precipitation
6-20%Predictable

🎯 This date historically delivers consistent weather 92% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

0.4Low
036811+

Protection Needed

SPF 15 for extended outdoor time

Time to Sunburn

Type I-II

🔴 200 min to burn

Type III-IV

🟡 300 min to burn

Type V-VI

🟢 500 min to burn

UV estimate based on latitude, season & cloud cover. Actual UV may vary.

Outdoor Comfort

How pleasant is it outside?

66Good
TemperatureCool
HumidityHumid
WindBreezy

Dew Point

0°C

Dry air

Heat Stress

Low

No heat warning

🙂 Best outdoor time:
Midday (11 AM - 3 PM) when warmest

Marine Conditions

Water Temp
12.2°C
🥶 Polar Plunge
Avg daily surface temperature
Surf Conditions
0.59m
🌊 Fun Waves
Max daily wave height
Advisories

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

100/100 pressure index

Health Advisory

Required

2 vaccines • View Details →

Landing Slots

~167

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Busan

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

07:31

☀️ Noon

12:35

🌇 Sunset

17:39

⏱️ Daylight

10h 8m

Golden Hour
Morning07:31 - 08:08
17:02 - 17:39Evening

Wind Speed

wind

18 km/h

Gentle breeze

Sunshine

clear-day

7.2 hrs

Direct Sun (Cloud-free)

Humidity

humidity

60%

Slightly humid

Travel Intelligence

Exclusive flight analytics & health data for Busan

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 Busan

Travel Comfort Index

Real-time tourism conditions

Weather Quality

☀️ Excellent

90/100

Tourist Crowds

🟢 Moderate

40/100

Price Level

💰💰 Moderate

50/100

Health & Wellbeing

Meteo-Health Forecast

85Score
Atmospheric Pressure1022.9 hPa
Volatility:Medium
Migraine RiskMedium

Moderate fluctuations. Some sensitivity possible.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexPoor

High pressure may reduce activity.

Air Quality Forecast
58AQI
Moderate
PM2.5 Concentration15.1 µg/m³

Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.

Regional Safety Profile

Low

Seismic Activity

Rare minor tremors. Buildings are earthquake-resistant.

Total events (30y):7
In Jan (30y):0
💡 Very rare tremors. Standard travel precautions apply.
Very High

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 January 20 averages 7.2°C with a 12% precipitation probability. Wedding/Outdoor Event Score: 56/100."

— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology

Busan Weather History (2010–2024)

Temperature History

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Hall of Fame

Records from last 10 years

Hottest
2025
10.1°C
Coldest
2016
-6.5°C
Rainiest
2024
24.8mm

Compare Other Cities

Same date (January 20) in other destinations

🌍 Explore the same date in different destinations around the world

📍 Is Busan Worth Visiting on January 20?

Planning a trip to Busan on January 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 7.2°C with a 12% historical precipitation risk.

✈️ Travel Logistics: Approximately 167 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 12.2°C (polar plunge). Wave conditions are generally fun waves with heights around 0.59m.

📊 Historical Extremes: The hottest January 20 recorded in the last 30 years saw temperatures hit 10.1°C in 2025, while the coldest dropped to -6.5°C in 2016.

Busan Weather FAQ