Busan Weather in December 2026: what to expect (4.3/10)

The month in detail

What to expect in December

Winter in Busan is cool (8.0°F during the day). Days are short (6.6h of sunshine) but the city reveals a different side. Rain risk remains low (12.0% of days), leaving good room for outdoor activities.

December ranks 10 out of 12 months in Busan. Compared to November: −13°F daytime.

This month's conditions

What it's like in December

UV index

3 · low

no protection needed

Feels like

dry air

-4°

Sea

15°C

cold, for the brave

Daylight

9.6h of daylight

Air quality

good

AQI 32

Compare

Is December the right month?

The best month in Busan is May (7.9/10), 3.6 pts higher than December.

See May →See all 12 months →

Context

Our verdict

Busan is Korea's 2nd city and the country's largest port: 3.4 million inhabitants, 7 beaches, 4 fish markets. May-June are my favorite months (8.2/10): 55-79°F, 28-38% rain, good temperature for Haeundae beach without the summer crowds.

Read Gilles' full review →

Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

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Stay

Hotels & rentals · Busan

Expedia →

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Activities

Tours, tickets, experiences

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Flights

Multi-airline comparator

Kiwi →

🎟️ Activities & tours · Busan

GetYourGuide selection · free cancellation

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Affiliate link · GetYourGuide

Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach trip.

Country · South Korea

🗣️LanguageKorean

💶CurrencySouth Korean Won (₩)

🚗DrivingRight-hand

🛡️Safety ⓘVery safe · 1/5

💰Cost of living ⓘModerate · 3/5

🌡️ Climate

🌍Climate typeTemperate oceanic

📈Climate trend ⓘStable

🔥Hottest monthAugust · 86°F

❄️Coolest monthJanuary · 45°F

🌧️Rainiest month ⓘJuly · 53%

🏖️ Beach trip

📅Peak seasonJuin → Sept

🏖️Swell (Sept–Mar) ⓘModérée

Explore

Other destinations in December

If December doesn't convince you for this destination, compare with others.

Similar climate

Nearby

YongpyongSouth Korea281 km

JejuSouth Korea299 km

Other top picks

🗺️ See all 754 destinations on the map

Location

Where is Busan ?

Global position + regional geographic context.

🌍 World

🔍 Geographic context

South Korea

Temperate oceanic climate with a 7.9 → 4.3 gap between best and worst month. 10 years of ERA5 data to choose by project.

35.18°N · 129.08°E

Questions

Frequently asked questions

What is the best time to visit Busan?

May is the best month with 72°F highs, 55°F lows, 7.4h of sunshine and 28.0% rainy days. The months of May & June offer comparable conditions.

How many hours of sunshine does Busan get in May?

Busan averages 7.4 sunshine hours per day in May. It is the sunniest month with a climate score of 7.4/10.

What is the rainiest month in Busan?

January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.

What are the temperatures at night in Busan in May?

In May, overnight lows reach 55°F, while afternoon highs average 72°F.

Is Busan good in winter?

In winter (December-February), Busan scores 4.1/10 on average — Difficult period — prefer the peak season.. The best month overall remains May with a score of 7.4/10.

When should you avoid Busan?

January is the most difficult month to visit Busan, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.

Can you swim in Busan in December?

In December, the sea averages 59°F in Busan: cold, for the brave. Best left to hardened swimmers or those with a wetsuit.

Do you need sun protection in Busan in December?

The average UV index reaches 3 in December in Busan (low), with about 9.6h of daylight. No protection needed.