2026 Climate Averages

Busan: Weather Guide & Climate

Complete month-by-month weather guide: Busan. Best time to visit: April, May, September, October. Plan your trip with detailed climate data.

☀️ Climate Overview

Busan has a Moderate climate with average yearly highs of 20°C, lows of 12°C, and approximately 8 rainy days per month.

The best time to visit Busan is during April, May, September, October, when conditions are perfect for sightseeing and exploration

Drier season: Jan–Dec Wetter season: Mar–Sep

Now

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Feels like --
Wind --
Humidity --
UV Index --
Local time —

Air Quality

Best Time

J F M A M J J A S O N D
Conditions Excellent

Hottest

31°C August
Avg Low 25°C
Rain 15 days

Coldest

0°C January
Avg High 9°C
Rain 4 days

Driest Month

3 rainy days December
Avg High 10°C
Avg Low 1°C

Windiest Month

19 km/h

February (gusts 45)

Sea Temp Range

12° – 28°C

Warmest water: August (28°C)

Best for swimming: Jun, Jul, Aug, Sep, Oct (20°–28°C)

Forecast for your trip dates

Up to 14 days ahead

Weather by Season

Spring

Mar–May

High 20°C
Low 10°C
Rain 8 days
Crowds
Busy
Travel Costs Shoulder Rates

Summer

Jun–Aug

High 29°C
Low 23°C
Rain 13 days
Crowds
Quiet
Travel Costs Peak Rates

Autumn

Sep–Nov

High 23°C
Low 15°C
Rain 8 days
Crowds
Busy
Travel Costs Peak Rates

Winter

Dec–Feb

High 10°C
Low 1°C
Rain 4 days
Crowds
Quiet
Travel Costs Value Rates

Month-by-Month Weather Table

January

Good
9° / 0°
4d (41mm)
7.8h
54% Moderate
UV 4.3 Moderate

February

Good
11° / 2°
6d (54mm)
8.2h
53% Moderate
UV 5.3 High

March

Good
16° / 6°
8d (86mm)
8.7h
60% Moderate
UV 6.7 High

April

Best
Excellent
20° / 10°
6d (88mm)
9.5h
62% Moderate
UV 8 Very High

May

Best
Excellent
23° / 14°
9d (123mm)
9.8h
69% Humid
UV 8.4 Very High

June

Good
27° / 20°
10d (176mm)
9.3h
77% Humid
UV 8 Very High

July

Wet
30° / 24°
15d (233mm)
8.8h
83% Very Muggy
UV 7 High

August

Wet
31° / 25°
15d (215mm)
9.4h
81% Very Muggy
UV 7 High

September

Best
Excellent
28° / 22°
13d (187mm)
8h
78% Humid
UV 5.6 High

October

Best
Excellent
23° / 15°
7d (83mm)
8.2h
69% Humid
UV 5.2 High

November

Good
17° / 8°
4d (55mm)
8.2h
60% Moderate
UV 4.4 Moderate

December

Good
10° / 1°
3d (19mm)
8h
53% Moderate
UV 4 Moderate

⚖️Find Your Ideal Month

Adjust the sliders to weight what matters most to you.

5
3
3
Your Best MonthJulScore: 9
1.Jul
92.Aug
8.53.Jun
7.44.Dec
6.15.Nov
66.Jan
5.67.Feb
5.68.Mar
5.69.May
5.610.Oct
5.611.Sep
5.212.Apr
4.7

Where to Stay

See hotels, apartments & rentals around Busan – live prices from Booking.com, Expedia, Vrbo and more

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Busan

Coastal city, including beaches, Haeundae Beach and Gamcheon Culture Village, fish markets, temples, and mountain views.

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Ready to Plan Your Busan Trip?

Get strategic travel tips, seasonal insights, and expert recommendations.

Frequently Asked Questions

What type of climate does Busan have?
Busan has a moderate climate with average yearly temperatures of 20°C and 12°C.
When is the best time to visit Busan?
The best time to visit Busan is during April, May, September, October, when temperatures average around 20°C and conditions are ideal for sightseeing.
What are the hottest and coldest months in Busan?
The hottest month in Busan is August with average highs of 31°C, while the coldest is January with average lows of 0°C.
When is the rainy season in Busan?
Busan sees the most rain in July (15 rainy days), while December is the driest month (3 rainy days).
Does it get cold at night in Busan?
Night temperatures vary throughout the year. The coldest nights are in January (0°C), while August has the warmest evenings (25°C). Pack layers for cooler months.
Can you swim year-round in Busan?
Sea temperatures in Busan range from 12°C to 28°C throughout the year. The warmest water is in August. Winter months may be too cold for comfortable swimming.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Last Updated: February 2026

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