Busan Weather
A month-by-month look at temperature, rainfall and what to pack in Busan. The annual average is 19°C high / 12°C low — hottest in August (30°C) and coldest in January (1°C).
Busan Weather at a Glance
As of 2026A quick summary of Busan's year-round climate and the best time to visit.
- Annual average
- 19° / 12°
- Best time to visit
- October, April, May
- Hottest month
- August (30°C)
- Coldest month
- January (1°C)
- Wettest month
- July (280mm)
- Driest month
- January (35mm)
As of 2026, Busan's weather averages 19°C high / 12°C low across the year, and the best time to visit for stable temperatures, rainfall and crowds is October, April, May. The hottest month is August (30°C), the coldest is January (1°C), and the wettest is July (280mm).
Best Time to Visit Busan
BIFF is most-iconic Busan event — Hollywood A-list + Korean cinema. Hotels triple. Book 3-6 months ahead. Most-photogenic Busan month.
Cherry blossom early April peak. Most photogenic. Hotels surge 30-60%, book 2-3 months ahead. Dalmaji Hill + Haeundae cherry blossom path magical.
Warm + pleasant. Korean Children's Day May 5 family travel. Pre-monsoon shoulder.
Busan Weather Month by Month
Tap any month for a detailed guide with what to wear, sunrise/sunset and air quality.
| Month | High/Low | Rain | Rainy days | Crowds | |
|---|---|---|---|---|---|
| January | 8° / 1° | 35mm | 5 | Quiet | Details → |
| February | 9° / 2° | 45mm | 6 | Quiet | Details → |
| March | 12° / 5° | 75mm | 8 | Moderate | Details → |
| April | 17° / 10° | 100mm | 8 | Very busy | Details → |
| May | 21° / 14° | 110mm | 9 | Busy | Details → |
| June | 24° / 18° | 200mm | 11 | Moderate | Details → |
| July | 28° / 22° | 280mm | 13 | Busy | Details → |
| August | 30° / 24° | 200mm | 11 | Very busy | Details → |
| September | 26° / 19° | 150mm | 9 | Busy | Details → |
| October | 22° / 14° | 80mm | 7 | Very busy | Details → |
| November | 16° / 8° | 60mm | 6 | Moderate | Details → |
| December | 10° / 3° | 40mm | 5 | Moderate | Details → |
What to Wear in Busan by Season
Spring perfect. Light jacket + sweater for evening.
Hot + humid + monsoon. T-shirt + raincoat + UV.
Pleasant autumn. Light jacket + sweater.
Still cold. Warm coat + sweater.
Busan Weather FAQ
What is the best time to visit Busan? +
For weather, October, April, May are the most comfortable months. Highs sit around 22°C with relatively stable rainfall and crowds.
What are the hottest and coldest months in Busan? +
The hottest month is August with an average high of 30°C, and the coldest is January with an average low of 1°C. The annual average is 19°C high / 12°C low.
When does it rain most in Busan? +
The wettest month is July (280mm over about 13 rainy days) and the driest is January (35mm). Total annual rainfall is roughly 1375mm.
What should I pack for Busan? +
Spring (Mar–May) averages 17/10°C — Spring perfect. Light jacket + sweater for evening. Summer (Jun–Aug) averages 27/21°C — Hot + humid + monsoon. T-shirt + raincoat + UV. Autumn (Sep–Nov) averages 21/14°C — Pleasant autumn. Light jacket + sweater. Winter (Dec–Feb) averages 9/2°C — Still cold. Warm coat + sweater.
What is the weather in Busan this month (June)? +
June averages 24°C high / 18°C low with 200mm rainfall over about 11 rainy days. Crowds are moderate and prices are moderate.
Keep Planning Your Busan Trip
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.