Best time to visit Busan: month-by-month weather (2026)
The highest-scoring months in Busan are Jun, Sep and Oct.
Best months
Jun, Sep and Oct
Peak season
Jun, Jul, Aug, Sep and Oct
Off season
Jan, Feb and Apr
Monthly Temperatures (°C)
Monthly Rainfall (mm)
Month-by-Month Guide
Temperature, rainfall and sunshine are measured. The visit score below is derived from those three (design spec §5.3)estimate.
Jan
Temp: -2°C – 7°C
Rain: 41mm
Sunshine: 8h/day
Visit score: 4/10
Feb
Temp: 0.1°C – 8.6°C
Rain: 61mm
Sunshine: 7.6h/day
Visit score: 3.9/10
Mar
Temp: 4.5°C – 13.6°C
Rain: 79mm
Sunshine: 8.4h/day
Visit score: 5.6/10
Apr
Temp: 9.5°C – 17.9°C
Rain: 110mm
Sunshine: 8.6h/day
Visit score: 4.7/10
May
Temp: 13.1°C – 20.8°C
Rain: 169mm
Sunshine: 9.1h/day
Visit score: 5.8/10
Jun
BestTemp: 18.7°C – 25.1°C
Rain: 237mm
Sunshine: 8.4h/day
Visit score: 7.3/10
Jul
Temp: 23.5°C – 28.7°C
Rain: 235mm
Sunshine: 9.1h/day
Visit score: 5.8/10
Aug
Temp: 24.8°C – 30.4°C
Rain: 198mm
Sunshine: 11h/day
Visit score: 5.8/10
Sep
BestTemp: 21.8°C – 27.6°C
Rain: 193mm
Sunshine: 8.9h/day
Visit score: 7.3/10
Oct
BestTemp: 14.3°C – 21.8°C
Rain: 159mm
Sunshine: 7.8h/day
Visit score: 7.2/10
Nov
Temp: 6.4°C – 15.3°C
Rain: 64mm
Sunshine: 8.5h/day
Visit score: 5.6/10
Dec
Temp: 0.1°C – 8.8°C
Rain: 39mm
Sunshine: 8h/day
Visit score: 4.9/10
When to go, and when not to
June, September, and October stand out as the best-rated months to visit Busan. September and October combine warm but not extreme temperatures, with October highs around 21.8C and lows around 14.3C alongside comparatively moderate rainfall of 159mm, while June brings high sunshine and warmth despite being the start of the wetter season.
The trade-off is that June through October is also the peak season, meaning more visitors and higher demand during these same highly rated months. Midsummer brings the heaviest rain and heat, with July and August seeing 235mm and 198mm of rain respectively alongside highs near 28.7C and 30.4C, so travelers sensitive to humidity or rain may prefer the shoulder months of June or September and October over the peak of July and August.
Season Guide
Spring
March – May
Mild temperatures and blooming gardens. A great time for sightseeing with fewer crowds than summer.
Packing tips
- · Light layers
- · Rain jacket
- · Comfortable walking shoes
Summer
June – August
Warmest months with the longest days. Peak tourist season in most destinations.
Packing tips
- · Sunscreen
- · Hat
- · Light clothing
- · Refillable water bottle
Autumn
September – November
Cooling temperatures and autumn foliage. Shoulder season with good deals on accommodations.
Packing tips
- · Medium layers
- · Sweater
- · Waterproof jacket
Winter
December – February
Coldest months with shorter days. Holiday markets and winter activities in many cities.
Packing tips
- · Warm coat
- · Scarf and gloves
- · Thermal layers
- · Waterproof boots
Keep reading
Sources
- GeoNames city database — CC BY 4.0, fetched September 14, 2026
- Open-Meteo climate archive — CC BY 4.0, fetched September 21, 2026
AI-written interpretation reviewed against the data above — claude-sonnet-5, generated September 21, 2026. Every number on this page comes from a dataset named here; the formulas are public.