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Weather Comparison

Seoul vs Busan

Side-by-side weather comparison for October

Seoul: 19°CBusan: 20°C325 km apart

October Weather: Seoul vs Busan

MetricSeoulBusanBetter
Average HighHigher is warmer19°C (66°F)20°C (68°F)Busan
Average LowHigher is milder9°C (48°F)14°C (57°F)Busan
Rain DaysFewer is drier5 days5 daysTie
PrecipitationLess is drier54 mm70 mmSeoul
Sunshine HoursMore is sunnier9h/day9h/dayTie
HumidityLower is more comfortable65%65%Tie
UV IndexLower is safer66Tie
Wind SpeedCalmer is better14 km/h17 km/hSeoul

Which City is Better in October?

Seoul and Busan are closely matched in October. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

Seoul sits in the comfortable travel range at 19°C. Busan is also comfortable at 20°C.

For travelers who prioritize dry weather, both cities are equally dry in October.

Temperature Comparison in October

Seoul reaches an average high of 19°C (66°F) and drops to 9°C (48°F) at night during October. The daily temperature range is 10°C, meaning moderate variation throughout the day.

Busan averages 20°C (68°F) for the high and 14°C (57°F) for the low, with a daily range of 6°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in October.

Rainfall Comparison in October

Seoul receives approximately 54 mm of rainfall across 5 rain days during October. Rain is occasional, so a light rain jacket should suffice.

Busan sees 70 mm over 5 rain days. Both cities are equally rainy this month.

Both cities share similar humidity levels at 65%.

What to Pack: Seoul vs Busan

Packing for Seoul in October

Highs of 19°C, lows of 9°C, 5 rain days

  • warm layers
  • a mid-weight jacket
  • long trousers
  • a packable rain jacket
  • an umbrella

Packing for Busan in October

Highs of 20°C, lows of 14°C, 5 rain days

  • light layers
  • a light jacket for evenings
  • sunscreen
  • a packable rain jacket
  • an umbrella

Pack for both: a packable rain jacket, an umbrella. These items are useful in either destination during October.

Year-Round Comparison: Seoul vs Busan

The table below shows average high temperatures and rain days for every month of the year, helping you find the best time to visit either city.October is highlighted for quick reference.

MonthSeoulBusan
HighRainHighRain
Jan1°C4d6°C4d
Feb4°C4d8°C5d
Mar10°C6d12°C8d
Apr17°C7d16°C8d
May22°C8d21°C8d
Jun26°C9d24°C10d
Jul28°C17d27°C14d
Aug29°C16d28°C14d
Sep25°C8d25°C10d
Oct19°C5d20°C5d
Nov11°C7d14°C5d
Dec3°C5d8°C3d
19°

Seoul Weather in October

Full forecast, packing tips, and activities

20°

Busan Weather in October

Full forecast, packing tips, and activities

Frequently Asked Questions

Is Seoul warmer than Busan in October?
No. In October, Busan is warmer with an average high of 20°C (68°F) compared to Seoul at 19°C (66°F), a difference of 1°C.
Which city gets more rain in October, Seoul or Busan?
Both cities average 5 rain days in October with similar precipitation levels.
Is it better to visit Seoul or Busan in October?
It depends on your preferences. Seoul averages 19°C and 9 hours of daily sunshine with 5 rain days. Busan averages 20°C with 9 sunshine hours and 5 rain days. If you prefer cooler conditions, choose Busan. For fewer rain days, both are equal.
How far apart are Seoul and Busan?
Seoul and Busan are approximately 325 km (202 miles) apart. Seoul is located in South Korea (Asia) while Busan is in South Korea (Asia).
What is the best month to visit Seoul and Busan?
For Seoul, May tends to be the best month with 10 hours of daily sunshine and a high of 22°C. For Busan, April is typically ideal with 10 sunshine hours and 16°C highs.

Compare Seoul and Busan in Other Months

Climate data sourced from the Open-Meteo Historical Weather API, using ERA5 reanalysis data covering 30-year normals from 1991 to 2020. All temperatures shown in Celsius with Fahrenheit equivalents. Rain days count days with 1 mm or more of precipitation. Sunshine hours represent average daily values. This comparison is generated from long-term climate averages and individual trips may vary.

Seoul coordinates: 37.57°N, 126.98°E | Busan coordinates: 35.18°N, 129.08°E