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Seoul weather this weekend
- 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
- 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.
- 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.
- 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.
- 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
- 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.
- 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.
- 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
- ₩1,000Daiso 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 - ₩2,000Daiso 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 - 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
- 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 - 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 - 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)
- SAYDo you have hot packs?
hat-paek i-sseo-yo?
핫팩 있어요? - SAYWhere are the thermal clothes?
bo-on-nae-ui eo-di-i-sseo-yo?
보온내의 어디 있어요? - 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
- Our tip: check the forecast again the morning you go out; it changes. The weather service site has an English page (weather.go.kr, Language: English).
- Our tip: heating indoors (subway, shops, cafes) is strong, so layers you can take off beat one heavy coat.
- Prices are from Daiso Mall and retailer announcements and can change by store.
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)