9 Tried-and-True Japanese Tips for a Cool Summer

Japanese summers are a world of their own. Starting as early as June, the rainy season known as tsuyu (梅雨) sets the stage for the hot and humid months ahead. Temperatures often soar above 35°C, with humidity levels reaching an oppressive 80–90%. Under such conditions, even simple physical activities can feel like a daunting challenge.

The Japanese have developed a variety of ways to cope with the intense heat. Air conditioning is widely used, and it’s common to see people on the streets with UV-protective umbrellas, sun sleeves, and hand fans. Stores offer an array of ingenious gadgets, such as cooling pillows, wearable neck fans, and specialized deodorants that provide a refreshing icy sensation on the skin.

Sun protection is deeply ingrained in the culture, with high-SPF sunscreens and UV-resistant clothing being everyday essentials. Hydration is also paramount, with isotonic drinks like Aquarius and chilled barley teas such as mugicha gaining immense popularity.

Summer can be challenging, but with ingenious Japanese solutions, enduring the heat becomes much more manageable.

UV protection is an essential part of summer fashion in Japan. High-UPF clothing, wide-brimmed hats, such as UV protection hats, and long sleeves provide not only effective protection but also a stylish addition to summer days. Japanese people also often use UV-protective umbrellas and caps with high UPF ratings, shielding them from harmful UV rays while enjoying outdoor activities.

Dermatological research, such as studies published by the American Academy of Dermatology, highlights that UPF clothing is an effective way to protect the skin from premature aging, skin diseases, and the most severe threat – skin cancer. 

Take care of your health by choosing UPF clothing that lets you enjoy summer without putting your skin at risk – it’s not just convenient but also a conscious step toward wellness.

In Japan, broad-spectrum sunscreens with high SPF (≥30) and innovative cooling mists are indispensable parts of summer skincare. These products effectively protect the skin from UVA and UVB rays while hydrating and soothing it on hot days. Spray formulas are especially practical, allowing for quick reapplication during active outdoor moments.

Dermatologists from the American Academy of Dermatology (AAD) stress that regular use of sunscreen reduces the risk of burns, premature aging, and skin cancer. Waterproof and long-lasting products are the best choice for active individuals who spend much time outdoors.

Learn more about dermatologists' recommendations on the American Academy of Dermatology website and ensure your skin is protected this summer!

On hot days, proper protection against sweat and unpleasant odor is essential. Japanese deodorants and antiperspirants stand out for their effectiveness thanks to innovative ingredients like alum, which neutralizes bacteria and regulates perspiration.

Light, creamy textures or convenient stick forms not only provide all-day protection but also nourish the skin without leaving marks. Their long-lasting freshness, delicate scents, and easy application make them perfect for any occasion.

In Japan, hand fans are a summer staple. Besides their practical cooling function, they also serve as aesthetic accessories that beautifully reflect Japanese culture. They’re ideal for walks, picnics, or places without air conditioning.

Simple home methods, like electric fans and bowls of ice, effectively reduce perceived temperature by supporting the evaporation process and cooling the air. Bowls of ice are one of the easiest and most accessible methods for lowering the temperature on hot days. Just fill a bowl with ice cubes and place it strategically, e.g., in front of a fan or ventilator. The cool air wafting from the ice surface spreads through the room, offering immediate relief from the heat.

To enhance the cooling effect, add a few drops of peppermint oil to the water for a refreshing touch. This simple, homemade method not only lowers the temperature but also creates a pleasant atmosphere – an excellent alternative to air conditioning.

Thanks to these simple yet effective solutions, even the hottest days become more bearable. Tradition meets functionality here, bringing relief during summer’s swelter.

Cool evening baths are one of the best methods to lower body temperature after a scorching day. Physiological studies confirm that immersion in cool water accelerates the body’s recovery and improves thermal comfort (source). This allows you to cool down effectively and prepare for a peaceful night’s sleep.

Consider using cooling shower gels and bath salts, which enhance the refreshing effect and provide a lasting sense of coolness on the skin. These products are perfect for summer, offering quick relief from the heat.

We also recommend persimmon soap, a natural antiperspirant. This soap effectively removes unpleasant sweat odors, leaving your skin clean and fresh. Persimmon soap is a must-have for summer care, especially for those who lead active lifestyles and value natural protection.

For hot summer nights, the Japanese use cooling pillows that maintain a low temperature throughout the night. These pillows allow for comfortable sleep without relying on air conditioning, supporting the body’s natural thermoregulation. Research shows that cooler mattresses and pillows extend the deep sleep phase, improving recovery and overall sleep quality.

Additionally, cooling compresses provide immediate relief during hot weather. Applied to the forehead, neck, or wrists, they help lower body temperature and enhance thermal comfort. Their effectiveness lies in cooling the skin and increasing evaporation, supporting the body’s natural defenses against heat. 

Cooling pillows and compresses are excellent additions to summer essentials alongside UPF clothing and UV umbrellas, creating comprehensive protection and comfort during the heat.

In Japan, lightweight, quick-drying towels like tenugui are an essential part of summer essentials. These versatile towels can cool your neck, dry your face after a sweltering day, or protect delicate skin from the sun. Their compact size and quick-drying properties make them indispensable during summer walks or outdoor activities.

As Douglas Adams wrote in The Hitchhiker's Guide to the Galaxy, a towel is a symbol of resourcefulness – a versatile item that prepares you for any situation. This saying perfectly captures the role of Japanese towels in hot weather.

Carrying a lightweight towel is a simple way to stay comfortable and fresh in the summer, blending Japanese tradition with practical protection against overheating.

During hot summer days in Japan, drinks like mugicha – caffeine-free barley tea – and Aquarius, an effective isotonic drink that quickly hydrates and replenishes electrolytes, are popular. These are excellent choices for maintaining proper hydration and avoiding heat exhaustion.

Japanese summer cuisine also features light, cooling dishes such as hiyashi chuka, cold noodles with toppings, or refreshing desserts like kakigori – shaved ice topped with fruity syrups. This diet not only provides relief on hot days but also helps maintain electrolyte balance and supports proper body temperature regulation.

Remember, balanced hydration and light meals are key to maintaining energy and health during the heat.

Aromatic essential oils like mint or eucalyptus work not only physiologically, offering a cooling sensation on the skin, but also psychologically, aiding relaxation and mental refreshment. This dual effect makes it easier to cope with high temperatures.

In Japan, fuurin, delicate wind chimes, are also popular. Their sound evokes a mental sense of coolness. Studies in psychobiometrics confirm that stimuli such as the sound of wind chimes can genuinely influence subjective temperature perception.

Hot days can be challenging, but Japanese cooling methods help you stay comfortable and fresh all day. The most important strategies include:

- Sunscreens and mists with high SPF to protect against UVA and UVB rays while providing relief in hot weather.

- UPF clothing and UV umbrellas to shield your skin from harmful sun exposure.

- Deodorants and antiperspirant creams with "burnt alum" to effectively combat sweat and odor, ensuring long-lasting freshness.

- Hand fans and bowls of ice – traditional yet highly effective ways to cool down without electricity.

- Cool baths, shower gels, soaps, and bath salts to lower body temperature and relax after a hot, tiring day.

- Cooling pillows, mats, and compresses for a comfortable sleep and recovery, even on the hottest nights.

- Tenugui and hankachi towels – lightweight, quick-drying, and multifunctional summer essentials.

- Cold drinks and light meals like mugicha and Aquarius to maintain hydration and provide energy without straining the body.

- Aromatic oils and the sounds of wind chimes (fuurin) to soothe the body and mind, evoking a sense of coolness and relaxation.

By adopting these proven methods, you can effectively combat the heat, care for your skin and health, and improve your sleep quality and overall well-being.

UV UPF PROTECTION

UV UPF PROTECTION

UV UPF PROTECTION

UV UPF PROTECTION

UV PROTECTION

COOLING BATHS

SUMMER DECORATION

HYDRATION

OMI - Gentle moisturizing sunscreen gel SPF50+ PA++++

Glow Instant :)

A very gentle formula with broad-spectrum protection that doesn’t clog pores or sting the eyes (I accidentally got some in my eye on the first try—while wearing contact lenses!—but nothing happened haha). It absorbs nicely and leaves a beautiful glow on the skin — your complexion looks very healthy :) I absolutely love this effect, but of course, everyone has their own taste ;) Plus, it’s waterproof!!! I give it 5/5 stars!!!

— Ewelina O.

Armpit cream with deodorant function blocking unpleasant odor

Cream Deodorant

Works perfectly! A small amount is enough, it smells natural with a hint of menthol, provides a slight cooling effect, lasts a very long time, and is highly effective. I tested it after intense physical activity. Great for both women and men.

— Dorota S.

NUMBER ONE IN JAPAN! Decaffeinated barley tea for making in a pot Kaori Kaoru Mugicha

Delicious!

I once received this tea from a friend in Japan — recently, I noticed it’s available in the store and of course, I bought it :) I brew the tea overnight in a jug — perfect for the current heatwave.

— Lena W.