Why Autumn Leaves Are Watched Like a Weather Forecast
Every October, Japanese meteorological agencies issue daily koyo reports — autumn leaf forecasts — with the precision usually reserved for typhoons.
It started in 1950, when the first radio stations began broadcasting predicted peak dates for maple viewing. Today, twelve distinct prediction zones are monitored across the country, each with its own elevation profiles, microclimates, and historical data. Families check the reports each morning. Hotels in Kyoto and Nikko adjust their rates by the day. Train companies add express services to mountain towns when the maples hit eighty percent color.
The viewing window is narrow — often just three days when the light hits the leaves at their deepest crimson. Miss it, and you wait another year.
Why does a nation treat falling leaves like weather? The answer reaches back centuries, to when the changing seasons weren't just noticed — they were revered. There's a word for the intentional act of going out to witness autumn: momijigari. Leaf hunting. Not passive observation, but pilgrimage.
Discover the full story — and the cultural forces behind Japan's most anticipated natural event — on Chaware.
日本人像追颱風一樣，追楓葉的顏色。
Part of the Chaware Library — practical guides and terms, not just stories. Visit the Library →
Chaware curates authentic Japanese crafts — straight from the makers in Japan to your table.
Explore the Chaware collection →
Keep exploring
