Japan in December — 師走, Shiwasu.
Quiet, cheap and clear, until the last week.
What is December called in the traditional Japanese calendar?
December is Shiwasu — the priests run — even the clergy are too busy to walk. Its season word is Susuharai, mid-December, traditionally the 13th.
Last updated: 6 July 2026
The soot sweeping.
The great temples clean themselves for the new year — monks with bamboo poles beating a year of dust out of halls that are otherwise silent, at Nishi Hongan-ji and Todai-ji among others. It is public, it is free, it photographs beautifully, and it is on almost no itinerary.
What December actually does to a file.
To about the 23rd the country is busy with its own year-end and almost empty of visitors: rates are low, the air is at its clearest, and Fuji is visible more often than in any other month. Then New Year arrives — rates triple in the ryokan towns, the ski resorts fill, and everything closes from the 31st.
The December programme.
- Susuharai at the great temples in mid-month
- The clearest Fuji views of the year from Hakone and the Fuji Five Lakes
- Winter illuminations, and the German-style markets in the cities
- Ski season opening in Hokkaido and Nagano from mid-month
Where December goes wrong.
The 24 December to 3 January window is a different product at a different price — quote it separately and hold ryokan inventory a year out.
Where to baseJapan in December — what agents ask.
What is December called in the traditional Japanese calendar?
December is Shiwasu — the priests run — even the clergy are too busy to walk. The name comes from the old lunisolar calendar and is still used in tea, kaiseki menus and shop signage.
What is Susuharai?
The soot sweeping, mid-December, traditionally the 13th. The great temples clean themselves for the new year — monks with bamboo poles beating a year of dust out of halls that are otherwise silent, at Nishi Hongan-ji and Todai-ji among others. It is public, it is free, it photographs beautifully, and it is on almost no itinerary.
Is December a good month to send clients to Japan?
The first three weeks of December are one of the great overlooked windows in Japan; the last week is New Year and a different market entirely.
What should agents watch for in December?
The 24 December to 3 January window is a different product at a different price — quote it separately and hold ryokan inventory a year out.
The rest of the Japanese year.
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