Busan, South Korea skyline

Busan Weather in October

What October is usually like in Busan, South Korea — from 2006–2025 averages.

Expect Busan to reach about 20.8°C (69.4°F) by day and 13.8°C (56.8°F) at night in October, with 5 rainy days bringing 88 mm and around 8.6 hours of sunshine each day.

Avg high

20.8°C (69.4°F)

Avg low

13.8°C (56.8°F)

Rainfall

88 mm (3.5 in)

Rainy days

5 days

Sunshine

8.6 h / day

Humidity

72%

October vs the rest of the year

October is warmer than 6 of the other 11 months, and the 6th driest month in Busan.

MonthAvg highvs OctoberRainRainy days
January6.5°C (43.7°F)−14.3°C (−25.7°F)29 mm4
February8.5°C (47.3°F)−12.3°C (−22.1°F)49 mm6
March12.7°C (54.9°F)−8.1°C (−14.6°F)84 mm8
April17°C (62.6°F)−3.8°C (−6.8°F)112 mm8
May21.4°C (70.5°F)+0.6°C (+1.1°F)121 mm8
June24.5°C (76.1°F)+3.7°C (+6.7°F)164 mm10
July27.6°C (81.7°F)+6.8°C (+12.2°F)262 mm16
August29°C (84.2°F)+8.2°C (+14.8°F)196 mm15
September25.2°C (77.4°F)+4.4°C (+7.9°F)188 mm11
October20.8°C (69.4°F)—88 mm5
November14.8°C (58.6°F)−6°C (−10.8°F)49 mm5
December8.1°C (46.6°F)−12.7°C (−22.9°F)33 mm4

What October feels like in Busan

In Busan, October brings mid-autumn. Afternoons are mild and comfortable for most people in light layers. Little changes after sunset — nights stay mild, only slightly below the daytime level. Moist air is typical, yet it seldom feels heavy at this time of year.

Rain in Busan in October

Rain turns up now and then — about one day in 6. When rain comes it is heavy, about 17.6 mm (0.7 in) per wet day, often in short, strong bursts. That is heavier than Busan's usual 13.8 mm per rainy day across the year.

Daylight and sunshine in October

In mid-October, sunrise is at about 6:29 am and sunset at about 5:50 pm (local time) — 11 h 22 min of daylight. Days are getting shorter: 1 h 6 min less daylight than in mid-September. Measured sunshine covers about 76% of the daylight — there are plenty of bright spells.

How October compares to the rest of the year

Ranked by average high, October comes out as the 6th warmest month in Busan. Compared with September, afternoons are 4.4°C (7.9°F) cooler, with 100 mm less rain. The cooling trend carries on into November. The next month's average high: 14.8°C (58.6°F).

Who October suits

  • Sightseeing: a good fit — daytime temperatures are fine for walking around.
  • Parks & outdoor: a good fit — comfortable for long walks and picnics.
  • Beach: a good fit — warm and mostly dry on the coast.

Tips for visiting Busan in October

Rain Protection

Keep a small umbrella in your bag and wear shoes that cope with puddles.

Sunglasses

Plenty of sun, so bring sunglasses and a cap.

Quick questions

How warm is Busan in October?

Expect around 20.8°C (69.4°F) in the afternoon and 13.8°C (56.8°F) at night, which most visitors would call mild.

Does it rain a lot in Busan in October?

Only moderately: roughly 5 wet days and 88 mm, usually moderate rain.

What should I wear in Busan in October?

Based on the averages: rain protection and sunglasses. Evenings feel similar to the day, so the same clothes work from morning to night.

Is October or November better for visiting Busan?

On our 12-month climate ranking, October comes out ahead (#1 of 12 vs #2). November is cooler.

Is October a good time to visit Busan?

Great

Great — comfortable temperatures, mostly dry (about 5 rainy days), plenty of sunshine (8.6 h a day). Within Busan's own year, October ranks #1 of 12 — one of the 3 best months to visit.

October in other South Korea cities

Warmer places in October

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Busan weather by month.