If spring is Japan’s season of pale pink, autumn is its season of deep red, orange, and gold. As summer’s heat fades, cooler, drier air settles in, and the country’s mountains, temple gardens, and city parks slowly transform into some of the most vividly colored landscapes in the world.

A Cooling, Clearing Season

Autumn in Japan runs roughly from September through November, though the transition from summer’s lingering heat to genuinely cool weather often doesn’t happen until October. By November, most of the country enjoys crisp, comfortable days and cold nights, with clear skies that make it one of the most pleasant times of year to be outdoors.

Koyo: The Autumn Leaves Front

Just as cherry blossoms have their seasonal front in spring, autumn has koyo, the turning of the leaves, which is tracked and forecast in a similar way. Unlike the cherry blossom front, however, koyo moves in the opposite direction: it begins in the cold mountains and northern regions of Hokkaido in late September, then gradually moves south and down to lower elevations, typically reaching Kyoto and much of central Japan in mid-to-late November, with some southern areas peaking into early December.

The color change is driven by shortening days and dropping temperatures, which cause deciduous trees — especially Japanese maples (momiji) and ginkgo trees — to stop producing chlorophyll, revealing the reds, oranges, and yellows that were hidden beneath the green all along.

Momijigari: The Tradition of Leaf Viewing

Momijigari, literally “autumn leaf hunting,” is the seasonal counterpart to spring’s hanami. Rather than picnicking beneath the trees, momijigari is more about walking, exploring, and taking in the scenery — strolling through temple gardens, along mountain trails, or beside rivers lined with blazing red maples. Famous spots like Kyoto’s temple gardens, Nikko’s mountain forests, and countless lesser-known valleys across the country draw visitors specifically to witness a single, dramatic color display that only lasts a few weeks.

Ginkgo Trees and Golden City Streets

While maples dominate mountain and temple scenery, ginkgo trees define autumn in Japan’s cities. Their fan-shaped leaves turn a brilliant, almost luminous yellow before carpeting sidewalks and parks in gold — a striking contrast to the red hues found in more rural, mountainous areas, and an easy way to enjoy the season without leaving an urban center.

Other Natural Signs of Autumn

• Harvest season — rice paddies turn golden and are harvested, while orchards fill with apples, pears, persimmons, and chestnuts
• Cooler mountain air — a shift that makes autumn one of the best seasons for hiking, after summer’s heat and before winter snow
• Clear, high skies — a noticeably different atmosphere from summer’s haze and humidity, often called out in Japan as one of autumn’s defining qualities
• Insect sounds changing — the buzzing cicadas of summer give way to the quieter, more melodic chirping of crickets and other autumn insects in the evenings

Why Autumn Rivals Spring for Natural Beauty

Many travelers who experience both seasons in Japan come away arguing that autumn’s colors are even more dramatic than spring’s cherry blossoms — richer in color, longer-lasting at any single location, and paired with far more comfortable traveling weather. Combined with harvest-season food and a noticeably quieter travel season than spring, autumn offers one of the most rewarding windows to see Japan’s natural landscape at its most vivid.