Seoul Weather in October: What to Wear Like a Local

Seoul in October: Your Complete Weather & Fashion Guide

Hey! After three years here, I've learned that October in Seoul is basically nature's sweet spot – but it's also weirdly deceptive. You might wake up thinking you need just a light sweater, then by evening you're freezing on the subway. Let me break down what actually works.

What's the Weather Actually Like?

October temperatures in Seoul range from about 10-20°C (50-68°F), but here's the thing nobody tells you: the temperature *feels* different depending on whether you're above ground or in a subway station (where it's somehow always exactly 15°C). Early October is still warm-ish – think 18-20°C. By late October, you're looking at crisp mornings around 8-10°C.

The humidity drops significantly compared to summer, which is amazing. Rainfall is moderate, so you're not dealing with monsoon season anymore. Check the Naver Weather app (available on iOS/Android) for hourly forecasts – it's more accurate than most Western apps.

The Layering Strategy (Trust Me)

Here's what actually works for October in Seoul:

Base layer: Light long-sleeve shirt or thermal underwear (especially for early mornings)

Mid layer: A cardigan or thin sweater – something you can tie around your waist or stuff in your bag

Outer layer: A denim or light bomber jacket for evenings

Pants: Jeans work perfectly. Locals also wear ankle pants (팬츠) and linen trousers early October

By late October, you'll see people breaking out their proper coats (코트), but you're not quite there yet. The key is avoiding heavy winter coats – you'll overheat on the packed Line 2 during rush hour.

Where to Shop

Don't stress about buying special October clothes. Hit up Myeongdong (명동) or Gangnam Station (강남역) if you need quick pieces:

Uniqlo: Heattech basics start around 9,900 KRW

H&M: Light jackets around 40,000-60,000 KRW

Korean brands like Mango Studio: Trendy cardigans at 30,000-50,000 KRW

For second-hand options, check Voomvoom or Stylenoriter on Naver – locals buy/sell gently used outfits here.

Shoe & Accessory Reality

Sneakers or comfortable flats are perfect because you'll be doing a lot of walking. October is ideal – not too hot for shoes, not so cold that you need thick socks.

Bring a lightweight scarf (스카프) – not just for fashion, but because Korean buildings blast AC indoors while it's cool outside. You'll genuinely need it inside cafes.

Sunscreen is still essential. The sun is deceptive in autumn, and I've made this mistake twice.

The Real Talk

Don't buy a heavy winter coat in October. Seriously. Every year I see foreigners showing up in Canada Goose parkas (which cost 700,000+ KRW) when a simple blazer and sweater would do. You'll look like a tourist and you'll overheat.

My Personal Recommendation

Download Weather Underground alongside Naver Weather and check both. Grab one versatile denim jacket you actually like (check Musinsa – musinsa.com – for Korean fashion), throw on layers, and you're golden. October's honestly the easiest month to dress for in Seoul.