What to wear in October
Crisp autumn. Long sleeves with a light jacket; layering handles the swing.


October sits in the middle of crisp autumn. Clear skies and turning leaves draw people out, but the daily swing widens again — mild afternoons, distinctly cool mornings and evenings.
A long sleeve with a light jacket or trench is the month's classic. Layer a thin knit for the cool morning and shed the outer midday. It's also a great time to lean into autumn-tone colors.
Seoul averages 11°C at night and 21°C by day. Twenty-one wants a long sleeve, eleven wants a jacket — two seasons inside one day. Pick the outer for the morning and take it off later.
Seoul weather in October
See what to wear at 18°C
What to wear across October's range
October holds both 11°C and 21°C inside a single day. Pick by the reading you actually get.
What to wear in October, women and men
For women in October, a knit under a trench or light coat carries the daily swing. For men, a sweatshirt or shirt with a blouson or jacket is the easy pick — choosing outerwear against the roughly 10°C mornings and evenings is the safer rule.
Recommended items
Styling tips
- Long sleeve or light knit
- Jacket or trench
- Autumn-tone colors
Related situations
Frequently asked
Can I wear a coat in October?
A thin coat or trench suits the later weeks. Early on, a jacket or cardigan is often enough.
How do I dress for October's swing?
Outerwear for the morning, base for the afternoon. A thin knit plus a jacket handles the gap well.
What's good for an autumn outing?
A long sleeve with a trench or jacket, plus a thin knit for the morning. Autumn tones set the mood.
What is the weather like in Seoul in October?
Typically 11°C to 21°C. Clear, dry days dominate, but the gap between morning and afternoon is the widest of the year.