Question 1

Will I catch autumn leaves in Matsuyama (Ehime) in December 11–20?

Accepted Answer

In an average year, Matsuyama (Ehime)'s autumn leaves reach peak color around November 24. For a December 11–20 trip, the chance of overlapping peak color is ~9%, and the chance of seeing at least some autumn color is ~9%.

Question 2

What will the trees actually look like in December 11–20?

Accepted Answer

Across December 11–20 in an average year, expect roughly 9.5 days of falling / past peak. Past peak — colours fading and leaves coming down. Gingko carpets can still be striking.

Question 3

What if I miss peak color in Matsuyama (Ehime)?

Accepted Answer

Odds are low across Japan for these dates (~9% peak overlap in Matsuyama (Ehime), and no other observed city fares much better). Shifting your trip toward the peak (around November 24) helps far more than changing cities.

Autumn Leaves in Matsuyama (Ehime) in Mid December: Will You Catch Them? (2026)