Planning a trip to Japan during summer?
It’s going to be amazing — but also hot, humid, and sweaty!
Don’t worry, though. With a few smart items, you can beat the heat and fully enjoy Japan’s summer festivals, temples, and outdoor adventures.

Here’s what you need to know about summer weather in Japan — and 5 must-have items to pack (or order online!).

Japan’s Summer: When It Is and What to Expect

Summer in Japan
MonthAvg. High TempHumidity LevelSpecial Notes
June75–82°F (24–28°C)🌧️ High (Rainy Season)Start of summer, hydrangeas bloom
July86–93°F (30–34°C)🌡️ Very HighEnd of rain, start of festivals
August91–99°F (33–37°C)🔥 Extremely HighObon travel, fireworks

📌 It’s not just hot — it’s humid.
Cities like Tokyo, Kyoto, and Osaka can feel like walking through a sauna. You’ll want to prepare ahead!

5 Must-Have Items for Surviving Summer in Japan

Item 1: Mini Towel

Wipe off sweat like the locals!
Small towels are essential and used everywhere — from train rides to shrine visits.

Tips

Bring a couple from home or order cute ones on Amazon Japan and have them delivered to your hotel. You can also find them easily at department stores, supermarkets like Aeon, convenience stores, and even 100-yen shops across Japan.

📝 First time using Amazon Japan? It’s easy to sign up — even from overseas.
👇 Here’s a step-by-step guide to creating your Amazon Japan account:

Item 2: Portable Fan

Trains, temples, and theme parks can get stifling.
Hands-free neck fans or USB rechargeable handheld fans are everywhere in Japan — and they work!

Tips

Japan has a wide variety of portable fans — from USB rechargeable types and hands-free neck fans to foldable or multifunctional designs.
You can find cute and trendy options at lifestyle stores like Francfranc and Loft — or simply order on Amazon Japan for maximum convenience.

Item 3: Sunscreen (Sweat-Proof!)

Japan’s UV index is high in summer, and the humidity makes reapplying sunscreen even trickier.
That’s why lightweight, non-sticky Japanese sunscreens like Anessa and Biore UV are traveler favorites

💡 Try this: Biore UV Aqua Rich Aqua Protect Mist

✅ Easy spray-on application — no need to touch your face
💄 Safe to use over makeup
✈️ TSA-friendly size (60ml / 2.03 oz) — perfect for your travel bag
🛒 Available at most drugstores in Japan or on Amazon Japan

Watch how it works:

Item 4: Mosquito Repellent (and Itch Relief)

Japan’s summer is not just hot — it’s buggy, too.
Especially near parks, rivers, and shrines, mosquitoes can be surprisingly aggressive.

Bring your favorite repellent from home or pick up patches or sprays in Japan’s drugstores.

You’ll find a wide range of mosquito repellents in Japan:
Mosquito Repellent bracelets for kids
Oniyama-kun: a fake dragonfly that mimics a mosquito’s natural predator!

Got a bite?
Anti-itch creams and patches are also widely available. Stock up on Amazon Japan or stop by a local drugstore.

image from Amazon Japan

Item 5: Breathable, Quick-Dry Clothing

Humidity is part of daily life in Japan’s summer, so wearing breathable, moisture-wicking fabrics makes a huge difference.
Quick-dry shirts, lightweight shorts, and moisture-wicking socks are lifesavers when walking around cities in the heat.

Tips

Japan’s Uniqlo “Airism” line is excellent and easy to find.

Summary

Japan’s summer is hot — but don’t let the heat stop you from enjoying it all.

Prepare wisely, and you’ll stay cool, comfortable, and ready to explore everything from fireworks to temples.

✅ Save this list
✅ Pack smart (or order ahead)
✅ Enjoy your unforgettable Japan summer trip!

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