When is Busan hottest?

August is the hottest, with average highs around 30°C and high humidity. July–August is peak beach season, so plan indoor activities (Olive Young shopping, jjimjilbang spas) around midday heat.

When is Busan's monsoon (rainy) season?

The monsoon (jangma) runs roughly late June to mid-July, when rainfall is heaviest. Carry a folding umbrella and a waterproof jacket, and keep indoor backup plans.

Does Busan get typhoons?

Yes. Typhoon season runs roughly July–September, with early September needing extra caution. Check forecasts before travel, as typhoons can disrupt flights and ferries (to Geoje, Tsushima, etc.).

Is Busan cold in winter? Do I need a down jacket?

December–February is coldest, with highs of just 8–10°C, colder mornings/evenings, and dry sea winds. A thick coat or down jacket, scarf, and warm base layers are recommended. Busan is milder than Seoul and rarely sees heavy snow.

When can I go to the beach in Busan?

July–August is beach season, with Haeundae and Gwangalli the most popular. The official swimming period runs roughly early July to late August; the sea stays warm into September with fewer crowds.

Busan Weather Guide: Month-by-Month Temperatures, Rain & Best Time to Visit

Q: When is the best time to visit Busan?

October is the best: dry, cool, little rain, and autumn foliage begins, with highs around 22°C. Spring (April–May) is a close second for cherry blossoms and pleasant temperatures. For the beach, choose July–August, though you'll face humidity and typhoon risk.

Busan weather for all 12 months: average temperatures, rainfall, typhoon and monsoon season, cherry blossom and autumn foliage timing, plus what to pack each month. When is the best time to visit Busan? October and spring.

Wondering when is the best time to visit Busan? Quick answer: October is the best overall — dry, cool, and great for autumn foliage. April–May follows close with cherry blossoms and pleasant temperatures. For the beach, pick July–August, but expect humidity and typhoons. Below is a month-by-month breakdown of temperature, rainfall, and what to wear.

Busan Weather at a Glance

Busan has a maritime climate — four distinct seasons, but milder than Seoul. Summers are hot and humid with heavy rain; winters are cold and dry with little snow. Spring and autumn are the most comfortable.

Month	Avg High	Avg Low	Notes
Jan	8°C	1°C	Coldest, dry, strong sea wind
Feb	9°C	2°C	Still cold, dry
Mar	13°C	5°C	Warming up, late cherry blossoms
Apr	18°C	9°C	Cherry blossoms, comfortable
May	22°C	14°C	Most comfortable, little rain
Jun	24°C	18°C	Monsoon starts late month
Jul	27°C	22°C	Humid, rainy, typhoon season begins
Aug	30°C	24°C	Hottest, peak beach season, typhoons
Sep	26°C	20°C	Still warm, watch typhoons early month
Oct	22°C	14°C	Best month, dry, foliage begins
Nov	16°C	8°C	Cool, peak autumn foliage
Dec	10°C	3°C	Turning cold, dry

These are long-term averages; actual weather varies year to year. Always check the live forecast before travel.

Busan Weather Month by Month

January

Coldest month, highs around 8°C, mornings near freezing, sea winds make it feel colder. Dry, almost no heavy snow. Great for spas and jjimjilbang. Wear: thick coat/down, scarf, thermal layers.

February

Cold and dry continues, highs around 9°C, warming slightly late month. Fewer crowds, cheaper stays. Wear: same as January.

March

Noticeably warmer, highs around 13°C, cherry blossoms open late month. Big day-night temperature gap. Wear: coat plus light long sleeves.

April

Cherry blossoms peak (usually early month), highs around 18°C, comfortable and great for photos. Wear: light jacket, long sleeves.

May

One of the most comfortable months, highs around 22°C, little rain and low humidity. Great for coastal walks. Wear: long sleeves or light jacket.

June

Highs around 24°C; pleasant early on, then the monsoon arrives late month and rain increases. Wear: short sleeves plus light jacket, carry a folding umbrella.

July

Humid and rainy — monsoon lasts to mid-month, then turns hot; typhoon season begins. Highs around 27°C but feels muggier. Beaches open. Wear: breathable short sleeves, rain gear, sunscreen.

August

Hottest month, highs around 30°C with high humidity, peak beach crowds, still typhoon risk. Plan indoor activities midday. Wear: light breathable clothing, swimwear, sun protection.

September

Heat eases but still warm, highs around 26°C; watch typhoons early month. Sea stays warm, fewer crowds — great for swimming. Wear: short sleeves, light jacket on hand.

October

Best month: dry, cool, high visibility, foliage begins late month. Highs around 22°C — ideal for all outdoor plans. Wear: long sleeves plus light jacket.

November

Cool and comfortable, highs around 16°C, peak foliage (Beomeosa, Geumjeongsan). Shorter days, cool mornings/evenings. Wear: coat, knitwear, scarf on hand.

December

Cold winter sets in, highs around 10°C, dry with sea winds; year-end lights and coastal night views. Wear: thick coat/down, warm accessories.

Seasons & Special Weather

Spring (Mar–May): Cherry blossoms late March–early April; pleasant temperatures — one of the most popular travel seasons.
Summer (Jun–Aug): Monsoon roughly late June–mid July (heaviest rain); typhoon season roughly July–September. August is hottest and busiest.
Autumn (Sep–Nov): Dry, clear, high visibility; foliage turns roughly late October–November — peak for photography and hiking.
Winter (Dec–Feb): Dry, little snow, strong sea wind, lowest crowds and prices — great for spas and indoor plans.

Best Time to Visit by Purpose

Most comfortable, best photos → October or April–May.
Cherry blossoms → early April; autumn foliage → late October–November.
Beach & swimming → July–August (accept heat and crowds).
Budget & fewer crowds → winter (Dec–Feb).
Avoid rain → skip late June–mid July monsoon.

Quick Packing Guide

Dec–Feb: thick coat/down, scarf, thermal layers.
Mar, Nov: coat plus long sleeves (big day-night gap).
Apr–May, Oct: light jacket plus long sleeves (easiest).
Jun–Sep: breathable short sleeves, sunscreen, rain gear; add swimwear and sun protection in summer.

Once you’ve picked your dates, check the Busan Autumn Foliage Guide and Best Time to Visit Busan. On a rainy or scorching day, the Olive Young Seomyeon flagship guide is the perfect indoor backup.