Busan Weather in January
Busan in January sees low daytime temperatures of 9°C (48°F) and nighttime lows of 1°C (34°F). Moderate rainfall is typical, with around 37 mm (1.5 in) for the month.
Rainfall in Busan in January
Typically, you can expect about 6 days of rain this month, with 37 mm (1.5 in) on average. The occasional light shower is possible, but rain is rarely an issue this month.
Temperature in Busan in January
In January, Busan sees low temperatures, with highs of 9°C (48°F). Nights drop to around 1°C (34°F). The month of January belongs to the winter season. It stays cool throughout the day, so warm layers are a good idea from morning to evening. Nights drop to 1°C (34°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. This month tends to bring the coldest weather of the year, so be sure to pack enough warm clothing to stay comfortable.
Sunshine in Busan in January
Enjoy a sunny month with about 204 hours of sunshine, making it one of the brighter months of the year despite the cool conditions.January in Busan has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Busan's climate page.
Busan Temperature in January
Min Temperature
1°C (34°F)
Max Temperature
9°C (48°F)
Chance of Rain
19%
Precipitation
37 mm (1.5 in)
Rainy days
6 days
Humidity
46%
Sunshine
204 hours
Percentage Sunshine
63%
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Busan typically stay consistent throughout January, with daily highs averaging around 9°C (48°F). Nights are very cold, with lows around -3°C (27°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Busan in January
Browse day-by-day weather records for Busan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Busan historical weather extremes in January
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Busan.
- On January 15, 2002, temperatures climbed to 18°C (64°F), marking the warmest January day on record.
- The coldest January day was on January 24, 2016, with a maximum of -5°C (23°F).
- The lowest overnight temperature recorded in January was -13°C (9°F) (January 8, 2021).
Best Places in South Korea in January
Find out more about the weather in South Korea and which places have the best travel conditions in this month. See all of South Korea in January →
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What to Wear in Busan in January
Dress warmly and in layers for your trip to Busan in January. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Light rain is possible, so consider bringing a small umbrella or rain jacket. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Busan in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Busan's climate page.
Temperature Rainfall Sunshine Humidity
See the full Busan climate overview or explore weather in South Korea.
