South Korea · 37°34′N 126°59′E

Seoul

Late-night food, palaces and very good skincare.

Good for: Big city, Food, Nightlife, Nature, History & culture, Doing nothing
Rough daily spend: around $110 per person mid-range, not counting getting there (our estimate; it varies a lot)
Mildest months: April, May, September and October

Best time to visit Seoul

Warmest in July (around 29° by day), coolest in January (2° by day, -7° at night). January has the fewest wet days (3). For walking around in comfortable weather, aim for April, May, September and October.

Average weather by month in Seoul
Month	High	Low	Wet days	Rain	Sun / day
Jan	2°	-7°	3	18 mm	7.7 h
Feb	5°	-5°	5	25 mm	8.4 h
Mar	12°	0°	6	43 mm	9.1 h
Apr	18°	6°	7	64 mm	9.4 h
May	23°	12°	8	111 mm	9.7 h
Jun	27°	18°	10	126 mm	9.6 h
Jul	29°	22°	17	313 mm	8.3 h
Aug	29°	23°	16	276 mm	9.1 h
Sep	25°	17°	9	160 mm	8.3 h
Oct	19°	9°	7	85 mm	7.9 h
Nov	11°	2°	6	51 mm	7.6 h
Dec	3°	-5°	5	28 mm	7.2 h

Averages for 2016–2025 from the Open-Meteo historical weather archive (CC BY 4.0), for the point at 37°34′N 126°59′E. Wet day = 1 mm or more. Highlighted months are mild (18–27° highs) and fairly dry.

What to pack for Seoul

For four nights, based on the weather above. Every trip also needs the basics: documents, chargers, toiletries and any medication.

July

4 × T-shirts or vests
2 × shorts or skirts
Waterproof jacket
Compact umbrella
Sunglasses
Sun hat
Sunscreen

January

4 × tops
2 × trousers or jeans
Warm jumper or fleece
Insulated coat
Hat, gloves and scarf
Thermal base layer

Either way

5 × underwear
5 × socks
Something to sleep in
Comfortable walking shoes
Small cross-body bag
Transit card or app set up

Going with a group? The planner builds a shared list where each person ticks their own things and claims the shared ones.

Going with friends?

One link for the group: find the days you’re all free, vote on what to do, get a day-by-day route and a shared packing list. No sign-up.

Plan Seoul