15 Essential Items for Summer Travel in Japan: How Hot Does It Get in Tokyo, Osaka, Fukuoka, and Sapporo?

When you think of summer in Japan, you might picture the sound of cicadas echoing under the blue sky, the shimmering ocean, and the gentle chime of wind bells creating a refreshing atmosphere. However, summer in Japan can also be quite challenging for travelers due to its high humidity, intense sunlight, and sudden rain showers. To fully enjoy your summer trip comfortably and safely, a little preparation goes a long way.

In this article, we introduce 15 must-have items to make your summer trip in Japan more comfortable. Be sure to check them out for your packing list!

*By purchasing or reserving products introduced in this article, a portion of the sales may be returned to FUN! JAPAN.

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How Hot Does It Get in Japan? Average High Temperatures in Tokyo, Osaka, and More

* 2024 average high temperatures (Source: Japan Meteorological Agency)

According to 2024 weather data, major cities in Japan experienced consecutive days of temperatures exceeding 30°C from July to September. In Tokyo, Osaka, and Fukuoka, the average high temperatures were close to 35°C, making heat protection essential.

15 Essential Items for Summer Travel in Japan: Beat the Heat!

1. Sunscreen

Japan’s summer UV rays are extremely strong, especially from July to August, which can cause significant skin damage. If you plan to spend a lot of time outdoors for sightseeing or leisure activities, it's best to choose a high-performance sunscreen with SPF50+ and PA++++. Waterproof options are also useful for sweaty days. Using separate sunscreens for your face and body can improve comfort, and picking a product suited to your skin type helps prevent irritation. Recently, multifunctional options such as gel, spray, and makeup base types have become widely available in drugstores. Reapplying sunscreen frequently will help keep your skin in top condition during your travels.

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2. Handheld Fan

Japan’s hot and humid summers can make it feel even hotter, increasing the risk of heatstroke. A great way to stay cool is by carrying a portable handheld fan. These come in various types, from compact models that fit in your hand to hands-free versions worn around the neck.

Most models are USB rechargeable, and key features to check include battery life and adjustable wind speed. Whether you're waiting for a train, attending an outdoor event, or standing in line, a handheld fan ensures you stay comfortable even in places without a breeze. Some newer models also include misting functions or aroma diffusers, combining functionality with stylish design. It’s a must-have item to make your summer trip much more enjoyable!

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3. Sunglasses

Japan’s summer sun can be intense, and reflected glare can strain your eyes. Sunglasses are a must-have to protect against UV damage. Whether you're sightseeing or driving, choosing lenses with UV protection will keep your eyes safe. These days, stylish and functional designs are widely available, making them great for travel photos too. Plus, many people wear sunglasses in tourist areas, so you won’t stand out.

Opt for lightweight, well-fitting frames to stay comfortable even after long hours of wear. Bringing a hard case helps prevent scratches. Adding sunglasses to your summer travel gear will keep you both comfortable and fashionable!

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4. Hat

A hat is essential for shielding your head and face from strong sunlight and preventing heatstroke. When sightseeing, attending festivals, or spending time outdoors, wearing a hat can make a big difference in how hot you feel. Wide-brimmed styles offer full-face protection, and some designs even cover the back of your neck.

Look for lightweight, breathable materials to stay cool. Foldable hats are convenient for travel, as they fit easily into your bag. Choosing one with UV protection ensures maximum sun defense. With so many stylish options available, you can find a hat that matches your fashion preferences while keeping you comfortable during your trip.

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5. Towel or Handkerchief

Japan’s summer heat means you’ll be sweating frequently, especially while sightseeing or traveling. Carrying a towel or handkerchief is incredibly useful for wiping off sweat and staying refreshed. Convenience stores and drugstores sell cooling towels and quick-dry options, which can be lifesavers in hot weather. Long sports towels that can be draped around your neck are particularly popular for outdoor activities.

Many public restrooms in Japan don’t have paper towels or hand dryers, so a handkerchief is also handy for drying your hands. Since you’ll use them daily, bringing a few extras is a good idea. Plus, Japan offers many cute and stylish handkerchiefs that make great souvenirs!

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6. Water Bottle / Reusable Bottle

Staying hydrated is crucial in Japan’s intense summer heat. While vending machines are everywhere, constantly buying drinks can add up and create unnecessary plastic waste. Carrying a water bottle or reusable bottle lets you bring your favorite drinks, saving money and reducing waste. Insulated bottles are especially useful, keeping your drinks cold for hours.

More public water refill stations are appearing at train stations and shopping centers, making it even easier to stay hydrated while being eco-friendly. Using an insulated bottle cover can make carrying your bottle more comfortable. A reusable bottle is a must-have item for summer travel in Japan!

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7. Cooling Sheets & Gel Pads

Japan’s humid summers can be tough on the body, especially during long trips or outdoor activities, making heatstroke prevention essential. Cooling sheets and gel pads provide instant relief—just stick a cooling gel pad on your forehead or neck to feel refreshed and help regulate your body temperature. Since they’re disposable, they won’t take up space in your bag, and they can also aid in comfortable sleep on hot nights.

You can easily find them at drugstores and 100-yen shops, making them a handy item to keep on hand during your trip.

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8. Deodorant Spray & Wipes

With Japan’s hot and humid summers, deodorant sprays and wipes are lifesavers for staying fresh. They quickly eliminate stickiness and odor, making them ideal for sightseeing or using public transport.

Japanese drugstores offer a variety of options, including cooling sprays, powder-infused wipes, and fragrance-free types. Many brands also have travel-sized versions, so you can easily carry them in your bag. To stay clean and refreshed all day, pack some deodorant wipes or spray as part of your summer essentials!

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9. Umbrella (Sun & Rain Protection)

Japan’s summer weather is unpredictable, with sudden showers and intense sun. A compact, foldable umbrella is a great travel companion, especially one with UV protection that doubles as a sunshade. This way, you’ll stay prepared for both rain and strong sunlight.

Lightweight, automatic-opening models are convenient for tourists, and carrying one in a shoulder bag can save you from unexpected downpours. If you don’t bring one, affordable options are available at drugstores, variety shops, and train stations.

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10. Breathable Clothing

Japan’s summers are hot and humid, so choosing breathable clothing is key to staying comfortable. Natural fabrics like cotton and linen, as well as quick-dry and cooling fabrics, can make a huge difference. Lighter-colored clothing absorbs less heat and gives off a cooler vibe. If you plan on long walks or sightseeing, opt for wrinkle-resistant and stretchy fabrics to stay comfortable throughout the day.

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11. Sandals

Sandals are a must-have for Japan’s summer, offering breathability and comfort while exploring. If you plan on walking for long periods, choose sandals with cushioned soles and anti-slip features to avoid discomfort.

Many temples and shrines require visitors to remove their shoes, so slip-on styles are a practical choice. Stylish sandals not only keep you cool but also look great in travel photos. To avoid blisters, consider carrying protective pads or bandages just in case.

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12. Extra T-Shirt

Japan’s summer heat and humidity mean that once you start sweating, your clothes can get damp quickly. Having an extra T-shirt on hand is a lifesaver, especially one made of quick-dry or cooling fabric to keep you comfortable.

This is particularly useful on days with outdoor activities or all-day sightseeing. Fold one neatly into a plastic bag to keep it compact, and you’ll avoid the discomfort of wearing sweaty clothes. While you can always buy one locally, packing an extra beforehand ensures peace of mind and helps you stay fresh and presentable.

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13. Uchiwa & Folding Fans

Traditional Japanese handheld fans, "uchiwa" (flat fans) and "sensu" (folding fans), are perfect for staying cool without electricity. They’re lightweight, easy to carry, and instantly provide a refreshing breeze—ideal for outdoor events, festivals, or while waiting for trains.

You can find them at convenience stores and tourist shops, with a variety of designs, from cute character prints to elegant Japanese patterns. They also make great souvenirs and add a touch of traditional charm to your trip. The gentle motion and sound of fanning create a nostalgic summer atmosphere, making them a memorable part of your experience.

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14. Light Scarf or Cardigan

Japan’s indoor spaces, like trains and restaurants, often have strong air conditioning, creating a sharp contrast with the hot and humid outdoors. A light scarf or cardigan is great for temperature control, keeping you warm when needed without being bulky.

It also doubles as a travel blanket on flights or long train rides. Look for wrinkle-resistant fabrics or compact foldable designs for convenience. Having a lightweight cover-up in your bag ensures you’re prepared for sudden weather changes or chilly indoor environments.

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15. Insect Repellent Spray

During Japan’s summer, mosquitoes and bugs are common, especially in parks, temples, and near rivers—especially in the evening. Insect repellent spray is a must-have, easily available at drugstores and convenience stores. Options include skin-friendly formulas, sprays for clothing, and natural ingredient-based products for sensitive skin.

Other alternatives include mosquito-repellent wristbands and stickers, which use scent to keep bugs away—great for kids or those with delicate skin. To be extra prepared, carry an anti-itch cream in case of bites.

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