Seoul has four real seasons plus monsoon and dust weeks. Here's what to actually pack in a carry-on for each, plus how to dress for each district's vibe.
Cherry blossom in early April. Cool mornings (8°C), warm afternoons (18°C). The trickiest packing season, bring layers.
Humid + hot (28-32°C peak). July is monsoon: ~3 weeks of solid rain. UV is intense. AC is everywhere, slightly chilly indoors.
The best season, hands down. Crisp dry days (20°C), foliage peak in late Oct. Locals' favorite. Visually photogenic.
Cold and dry (-5 to 5°C). Wind-chill makes it feel colder. Snow is occasional. Heating is everywhere, dress in layers you can shed.
Tip. Match the energy, your sharper outfits get worn here.
Tip. Be casual. Sneakers + interesting tee. No need to overdress.
Tip. Brand-aware streetwear. Korean labels, neutral palette.
Tip. Comfortable shoes (1+ km of walking). Hanbok rental gets you free palace entry.
Tip. Anything goes. Most permissive dress code in Seoul.
Tip. Smart casual is the safest. No flip-flops.
Last updated May 2026 · Korean weather changes fast, pack layers, not single statement pieces.