Seoul in October

8.0out of 10

Yes, a good time to go

Mild: highs around 20°C. Some rain: about 5 rainy days.

20°CAvg high
9°CAvg low
5Rainy days (54 mm)
11:00 hDaylight
06:47Sunrise · 17:47 Sunset

Why this score

  • Mild: highs around 20°C
  • Some rain: about 5 rainy days

What to wear and pack

  • Layers you can add or remove
  • Comfortable walking shoes

How reliable is the forecast?

Rainfall in October is fairly consistent from year to year (2.3 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.

Year at a glance

2° -7° J 5° -5° F 11° 0° M 18° 6° A 23° 12° M 27° 18° J 28° 22° J 29° 22° A 26° 16° S 20° 9° O 12° 2° N 4° -5° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 2°C-7°C19 mm 4– – 4.8
February 5°C-5°C26 mm 4– – 5.3
March 11°C0°C38 mm 6– – 6.4
April 18°C6°C70 mm 7– – 7.4
May 23°C12°C96 mm 8– – 8.0
June 27°C18°C134 mm 9– – 7.6
July 28°C22°C311 mm 17– – 6.1
August 29°C22°C254 mm 15– – 6.1
September 26°C16°C123 mm 8– – 7.8
October 20°C9°C54 mm 5– – 8.0
November 12°C2°C47 mm 7– – 6.4
December 4°C-5°C23 mm 5– – 5.1

Frequently asked questions

How hot is Seoul in October?

Daytime highs average 20°C and nights about 9°C.

When is the best time to visit Seoul?

The best months are May, October, September, June.