The Art of Keeping Cool

Summer Through the Eyes of Japanese Woodblock Artists

Summer, hot and humid, has never been an easy season in Japan.

This July, the UK has had a small taste of a Japanese summer. Days have felt unusually hot, fans have become essential rather than optional, and even the lightest breeze has been a welcome relief.

It's a feeling that would have been familiar in Edo-period Japan. Long before electric fans or air conditioning, people found countless ways to make summer more bearable—and artists became remarkably skilled at capturing not the heat itself, but the welcome sensation of coolness.

A breeze stirring the willow branches. A boat drifting across the Sumida River. Fireflies dancing above dark water. Even the delicate chime of a wind bell was enough to make people imagine cooler air.

Rather than painting the heat itself, artists celebrated the moments that made summer feel just a little more bearable.

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Water

Spending time beside the river was one of the simplest and most enjoyable ways to escape the heat of the day. As evening approached, the banks of the Sumida and Kamo rivers filled with strollers, pleasure boats and teahouses, while artists turned these everyday moments into some of the most evocative images of Japanese summer.

Twilight was the busiest time at Ryōgoku Bridge. As the day's heat began to fade, people made their way to the Sumida River for boating, music and an evening of entertainment.
Rather than depicting the festivities themselves, Hiroshige captures the quieter moments beforehand. Pleasure boats begin to gather beneath the bridge while snow-capped Mount Fuji still glows softly on the horizon, beyond the rooftops of Edo.

The banks of the Sumida became one of the city's favourite places to escape the oppressive summer heat. This seasonal tradition, known as kawabiraki ("river opening"), marked the start of summer evenings on the water and would eventually become closely associated with the famous Ryōgoku Fireworks Festival.

Look closely and you'll notice that Hiroshige has quietly scattered clues to the season throughout the print. The graceful willow branches suggest a welcome breeze, while the swallows decorating the woman's kimono were another familiar sign of early summer.

As the evening breeze swept in from the Sumida River, there was little need to hurry. The oppressive heat had finally begun to lift, and simply strolling beside the water became one of summer's greatest pleasures. This gentle pastime, known as yūsuzumi ("evening cool"), was as much a part of Edo summers as fireworks or festivals.

Hiroshige captures the breeze so convincingly that you can almost feel it. The willow branches sway overhead, loose strands of hair escape elaborate hairstyles, and light summer kimono billow around the women as they try to keep hold of their flowing sleeves and sashes.

One delightful detail is easy to miss. The woman in the middle has tucked her uchiwa fan between her lips, freeing both hands to steady her windblown kimono. It's a wonderfully human moment—one that transforms an elegant beauty into someone briefly at the mercy of a strong summer breeze.

If Ryōgoku was Edo's favourite summer escape, Kyoto had its own riverside tradition. On warm evenings, people gathered along the banks of the Kamo River to dine, stroll and enjoy the cooler air beneath the full moon.

Rather than showing a bustling crowd, Yoshitoshi focuses on a single quiet moment. A young waitress sits on the edge of a riverside platform, absent-mindedly trailing one bare foot through the cool flowing water. It's such a simple gesture, yet anyone who has sought relief on a sweltering day instinctively knows how refreshing it must have felt.

The artist fills the print with subtle seasonal details. The paper lantern beside her bears the crest of the teahouse where she works, while the chidori (plover) pattern on her light summer robe recalls Kyoto's famous Pontochō entertainment district. Yet it is the relaxed pose that captures the eye. For a brief moment, work seems forgotten as the cool river offers a welcome pause from the summer heat.

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Evening

When the heat of the day had passed, evenings became a time to venture outdoors again. Firefly viewing wasn't simply entertainment; it was another way of embracing the coolest hours of summer. 

As daylight faded, another summer pastime began. Families and friends gathered beside rivers and streams to search for the tiny flashes of fireflies drifting through the evening air. More than simple entertainment, hotaru-gari ("firefly hunting") was another way of enjoying the coolest hours of the day.

Utamaro captures the excitement perfectly. A boy has already waded into the stream in pursuit of the glowing insects, while another child eagerly watches the grown-ups stretching high with their fans, hoping to catch a firefly overhead. A young girl in the centre of the composition carefully examines the evening's prize inside an elegant insect cage.

Every gesture is alive with anticipation. Sleeves fall back, robes are tucked aside, arms reach upwards and faces follow the tiny lights darting through the air. The scene feels wonderfully spontaneous—as though we're watching a fleeting summer evening rather than a carefully composed print.

        

The Japanese word nōryō means more than simply "keeping cool." It describes the quiet pleasure of stepping outdoors after sunset to enjoy the evening breeze—a custom that has been part of Japanese summers for centuries.

Shotei captures that feeling with remarkable simplicity. A small boat drifts silently across still water as its passengers pause to admire the fireflies dancing above the river. One woman leans out—almost precariously—to catch one of the tiny glowing insects, unable to resist reaching for its fleeting light.

The only illumination comes from the warm lantern of a riverside teahouse and the fireflies themselves, their reflections shimmering gently on the dark water. Nothing dramatic happens here, yet the print evokes the perfect summer evening: still, unhurried and blissfully cool after the heat of the day.

Not every summer evening called for excitement. Sometimes, simply stepping outside was enough.

Beneath a luminous full moon, a woman and a child stroll along the grassy bank of the river. Fireflies drift lazily through the warm night air, their tiny lights echoing the moon reflected in the water below. A softly lit house nestles among the trees, while distant hills dissolve into the blue-grey darkness.

Shotei fills the scene with stillness. There is no festival, no bustling crowd—only the gentle rhythm of an evening walk and the simple pleasure of lingering outdoors after the day's heat has finally begun to fade. It is a reminder that one of summer's greatest luxuries is not escaping the season, but learning how to savour its coolest hours.

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Rain

Rain might seem an odd symbol of summer. Yet in Japan, the rainy season (tsuyu) marks the beginning of the humid months, filling the landscape with heavy skies and sudden downpours before the full heat of summer arrives.

Unlike rivers, evening breezes or folding fans, rain wasn't something people sought out. Instead, it became another unmistakable sign of the season itself. In woodblock prints, artists often used dramatic showers to capture summer's unpredictability — beautiful one moment, overwhelming the next.

Perhaps no print captures the drama of summer rain more famously than this masterpiece from Hiroshige's One Hundred Famous Views of Edo.

A sudden cloudburst sweeps across the Shin-Ōhashi Bridge, sending pedestrians hurrying for shelter beneath straw hats, umbrellas and rain capes—though most seem destined to be drenched regardless. Beneath them, a raft of timber glides steadily along the Sumida River, almost indifferent to the chaos unfolding above.

Hiroshige creates an extraordinary sense of movement. The dense diagonal lines of rain—a remarkable feat of woodblock carving—slice across the composition, while the bridge's strong perspective carries our eyes through the rushing figures. Everything feels fleeting, as though the shower has arrived without warning and will disappear just as quickly.

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Fireworks

By the time darkness fell, the search for coolness had become something to celebrate.
The banks of the Sumida River, already popular for catching the evening breeze, filled with pleasure boats, riverside stalls and families gathering to watch fireworks reflected on the water.

The tradition began in 1733, when the shogun Tokugawa Yoshimune sponsored a fireworks display on the Sumida River in memory of those lost to famine and disease. What began as an act of remembrance evolved into the annual Ryōgoku Kawabiraki Fireworks Festival, a midsummer celebration that still draws crowds almost three centuries later.

Returning to Ryōgoku, Hiroshige shows the river at its liveliest. Lantern-lit pleasure boats drift across the Sumida while crowds line the bridge to watch fireworks burst across the moonless sky. Reflected in the dark water below, the brilliant flashes briefly illuminate the city before fading into the night.

Unlike many festival scenes, the artist leaves much of the composition in darkness. The vast expanse of night sky makes each firework feel all the more spectacular, while the glowing lanterns scattered across the river create a quiet sense of anticipation between each explosion.

The scene is festive yet remarkably serene. Even amid the crowds, the river remains the heart of the composition—a place where people gathered not only to marvel at the fireworks, but to savour the welcome coolness of a summer evening.

Not everyone experienced the summer fireworks from a crowded riverbank.
In Gekkō's refined composition, a young woman stands quietly on a veranda, watching a distant firework bloom above the water. Dressed in a light summer kimono, she leans gently against the wooden rail, an uchiwa fan tucked into the back of her obi—a small detail that reminds us the evening is still warm despite the darkness.

The brilliant burst of red is almost incidental. Our attention is drawn instead to the quiet figure, the open night and the cooling air that seems to drift through the scene. Rather than depicting the excitement of the festival, Gekkō captures the peaceful pleasure of simply pausing to watch, as boats drift below and the city celebrates in the distance.

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Summer in Japan has always demanded patience. Yet Japanese woodblock artists rarely focus on the discomfort itself. Instead, they show us what people did in search of relief—and, in doing so, capture the season at its most beautiful.

A boat drifting beneath the moon. Fireflies reflected on a quiet river. The exhilaration of a sudden shower. A cool evening breeze lifting the sleeves of a summer kimono. Fireworks illuminating the night above the Sumida.

None of these moments banished the heat. But together they transformed it into something else: memories, rituals and fleeting moments of beauty. More than a century later, they don't simply show us what a Japanese summer looked like—they remind us how it felt.

Inspired by the artworks in this story