On November 4, 2021, JMC released its 3rd forecast for the start of autumn foliage. JMC has estimated the best viewing dates of red leaves (maple trees) and yellow leaves (ginkgo trees) for approximately 700 viewing locations around the country, spanning from Hokkaido to Kagoshima. Furthermore, information on the anticipated autumn foliage at approximately 2,000 mountains across Japan will also be offered per altitude.
(This will be the last autumn foliage forecast for this season)
Forecasts for autumn foliage viewing locations and mountains can also be found at the weather/disaster information site “Otenki Navigator,” with information in four languages including Japanese and English.
Forecasted autumn foliage viewing for approximately 700 locations across Japan “Otenki Navigator/Autumn Foliage Navigator” (free)
2021 forecast of autumn foliage viewing dates
2021 forecast of autumn foliage for each area
[Released November 4, 2021]
Forecast for red leaves viewing dates
|Location||Forecast for red leaves||Average date for red leaves|
Forecast for yellow leaves viewing dates
|Location||Forecast for yellow leaves||Average date for yellow leaves|
Actual status (locations in which red/yellow leaves have been announced by Japan Meteorological Agency)
The JMC forecast for autumn foliage
JMC uses original forecasting calculations developed on past research on periods that maple and gingko leaves change color. The forecast of autumn foliage dates is based on observation standards of Japan Meteorological Agency sample trees, and estimates the “first day in which most parts of the tree’s leaves turn red (yellow).”