Seoulful@seoulful.korea
Seoul weather this weekend. Seoul's first cold snap of the fall: the weather service forecasts a sunny 7–14°C Halloween Saturday, 3°C and afternoon rain on Sunday, and 1–4°C mornings next week. Here's how to layer, where to grab ₩1,000 hot packs, and where to buy a jacket if you packed too light.

Seoul weather this weekend

TRAVEL TIPS · UPDATED OCT 28, 2026

Sat Oct 31
Sunny, 7–14°C
Sun Nov 1
3–11°C, rain in the afternoon
Mon–Wed
Mornings 1–4°C
Hot packs
Daiso pocket hot packs, 2 for ₩1,000

Seoul's first cold snap of the fall: the weather service forecasts a sunny 7–14°C Halloween Saturday, 3°C and afternoon rain on Sunday, and 1–4°C mornings next week. Here's how to layer, where to grab ₩1,000 hot packs, and where to buy a jacket if you packed too light.

Myeongdong in 2018 · Photo: Andrew from New York (CC BY-SA 2.0), via Wikimedia Commons

The forecast, day by day

  1. FRI 30Rain clears early, 10–18°C

    Rain from Thursday afternoon (5–10mm in Seoul) ends around dawn on Friday. Cloudy in the morning, clearing in the afternoon.

  2. SAT 31Halloween: sunny, 7–14°C

    Clear all day. Warm enough at noon, but it drops back to single digits after dark, so bring a layer for evening plans.

  3. SUN 13–11°C, rain in the afternoon

    The cold comes back: a 3°C morning, cloudy, with rain likely from the afternoon (60% chance). An umbrella and a warm jacket.

  4. MON–WEDMornings 1–4°C, days 11–12°C

    Mostly clear and dry. Tuesday morning is the coldest at 1°C. The weather service says lows run below normal for early November.

What to wear

  1. BASEA thin thermal top

    Our tip: a heat-tech style thermal layer under a sweater or sweatshirt does more than one thick coat, and you can take it off indoors where heating is strong.

  2. OUTERA light padded jacket

    Days of 11–14°C plus cold mornings and nights: a light down or padded jacket over your layers covers both. Fleece alone lets wind through on gusty days.

  3. NIGHTHat, gloves, warm socks

    For Halloween, Han River or night markets, bring a beanie and gloves. Touch-screen gloves let you keep using your phone map.

The ₩1,000 fix: hot packs

  1. ₩1,000Daiso pocket hot pack, 2-pack

    Shake it and put it in your pocket. Daiso lists it at ₩1,000 for 2, lasting up to 14 hours.

    주머니 핫팩
  2. ₩2,000Daiso stick-on hot pack, 3-pack

    Sticks onto your clothes (back, lower back). Daiso lists it at ₩2,000 for 3, up to 12 hours. Never stick it on bare skin or sleep with it: it can cause low-temperature burns.

    붙이는 핫팩
  3. 24/7Any convenience store

    CU, GS25, 7-Eleven and emart24 all sell hot packs, and hot-pack sales jumped there in October. Prices vary by store and brand.

Packed too light? Buy it here

  1. CULight padding ₩39,900, fleece ₩22,900

    CU convenience stores started selling winter outerwear on Oct 22: a light padded jacket (₩39,900), a windbreaker (₩27,900) and a fleece jacket (₩22,900), black, sizes 100 and 105. Not every store stocks them.

    CU 경량패딩
  2. DAISOThermal tops and bottoms, ₩5,000 each

    Daiso's Aero Heat thermal innerwear is ₩5,000 per top or bottom (black). It also sells knits, fleece and windbreakers under ₩5,000.

    에어로히트 보온내의Google Maps
  3. GS25Musinsa Standard heat innerwear at the convenience store

    GS25 sells Musinsa Standard heat innerwear in many stores, plus gloves, earmuffs and warm socks.

Say it in Korean (show this screen)

  1. SAYDo you have hot packs?

    hat-paek i-sseo-yo?

    핫팩 있어요?
  2. SAYWhere are the thermal clothes?

    bo-on-nae-ui eo-di-i-sseo-yo?

    보온내의 어디 있어요?
  3. SAYDo you have this in a bigger size?

    i-geo deo keun sa-i-jeu i-sseo-yo?

    이거 더 큰 사이즈 있어요?

Local tips

FAQ

What's the weather in Seoul on Halloween 2026?

The Korea Meteorological Administration forecasts a sunny Saturday, Oct 31, with a low of 7°C and a high of 14°C in central Seoul (forecast of Oct 28).

How cold is Seoul in early November 2026?

Morning lows of 1–4°C and highs of 11–12°C are forecast for Nov 1–4, with rain on the afternoon of Sunday, Nov 1.

Where can I buy hot packs in Seoul?

At Daiso (pocket hot packs, 2 for ₩1,000) and at convenience stores such as CU, GS25, 7-Eleven and emart24.

Sources: Korea Meteorological Administration: short-range forecast (Oct 28, 2026, 11:00) and Seoul/Gyeonggi mid-range forecast (Oct 28, 06:00) · Hankook Ilbo: Seoul 2°C morning, cold wave advisory (Oct 27, 2026) · Cheonji Ilbo: Seoul 2°C, early cold to last about a week (Oct 27, 2026) · WikiTree: Seoul area lows -2 to 11°C, Oct 31 – Nov 6 (Oct 27, 2026) · Daiso Mall: pocket hot pack 2-pack ₩1,000 · Daiso Mall: stick-on hot pack 3-pack ₩2,000 · Seoul Economic TV: convenience-store hot packs, CU outerwear, Daiso apparel (Oct 25, 2026) · SBS Biz: CU winter outerwear prices · WikiTree: Daiso Aero Heat thermal innerwear ₩5,000 (Sep 24, 2026)

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