What Should I Wear in Japan in Summer?
A local explains that you can wear almost anything in Japan.
“What should I wear in Japan in summer?”
Japan’s summer (June-September) is hot and extremely humid — often 35°C+ with 80%+ humidity. Here’s what to wear:
The Essentials
| Item | Why | Where to Buy |
|---|---|---|
| Lightweight T-shirts | Cotton or dry-fit fabric | Uniqlo (¥990-1,500) |
| Shorts or light pants | Breathable material | Uniqlo, GU |
| Comfortable walking shoes | You’ll walk 15,000+ steps/day | Bring from home |
| Sun hat or cap | UV protection | 100 yen shop or Uniqlo |
| Thin cardigan | For freezing A/C indoors | Uniqlo (essential!) |
The A/C Trap
This is the #1 thing tourists don’t expect: air conditioning in Japan is arctic cold. Trains, malls, restaurants — all set to around 20°C. The contrast with 35°C outside is shocking. Always carry a light layer.
What Japanese People Wear
- UV arm sleeves — very common among women. Available at Uniqlo and 100 yen shops
- Cooling towels — wet them and drape around your neck. Sold at Don Quijote
- Uniqlo AIRism — lightweight, moisture-wicking base layer. A summer essential
- Heattech is for winter — don’t accidentally buy the wrong line!
Rainy Season (June-July)
If visiting during tsuyu (rainy season):
- Waterproof shoes or quick-dry sandals
- Compact umbrella — or buy a clear vinyl one at any convenience store (¥500)
- Waterproof phone pouch — useful for rainy days and water attractions
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