Diamond Fuji 2026-2027: Confirmed Dates, Reference Windows and Where to See It

Mt. Fuji · Diamond Fuji · 2026-27

By Nobu · Updated September 2026 · Checked 14 September 2026 against the Yamanakako Tourism Association, the Takao cable-car operator, the Chiba City Tourism Association, Sunshine City, Fujinomiya City and MLIT’s viewing-date lists. Every date below is labelled by what it is: confirmed for this season, announced, a yearless official reference, or last season’s record.

Diamond Fuji — the sun meeting the summit of Mt. Fuji — happens somewhere in the Fuji-viewing belt through most of the year, but every viewing point has its own narrow dates. For the 2026-27 season the calendar is filling in unevenly: Chiba City has already published official spot-by-spot dates for 14–23 October 2026, Sunshine 60 in Tokyo has announced sessions from 13 November 2026 and 25 January 2027, Lake Yamanaka’s nine spots run on official reference dates published without a year, and Mt. Takao’s 2026 window was still unannounced in mid-September. This guide sorts every major viewing area by what is actually known.

How the calendar actually works

The sun’s setting and rising points drift along the horizon through the year. Each viewing location sees Mt. Fuji’s summit in one fixed compass direction, so the alignment only lands there on a narrow set of dates — typically one pass in autumn and one in late winter for sunset spots east of the mountain, or spring and late summer for sunrise spots to the west and the far south. A few places break the two-date pattern honestly: sites with large grounds (Hana no Miyako Park at Yamanaka) or a whole stretch of riverbank can track the alignment for weeks as the ideal standing point migrates.

Three planning rules follow from the official caveats rather than from folklore. First, MLIT’s date lists warn that the calendar shifts one to two days between years — so undated reference lists are planning tools, not guarantees. Second, the exact date depends on the summit’s direction and apparent height from where you stand: high observation floors run on different dates from the ground below them, and MLIT notes its calculations do not account for viewing-floor elevation. Third, the moment is short — the brightest instant is a matter of seconds — and it happens well before flat-horizon sunset, so “I’ll arrive around sunset” is how people miss it.

Region by region, labelled by status

The calendar I actually check

For date-by-date planning I use the same tool I open at home: the Japanese-language Diamond Fuji & Pearl Fuji shooting calendar published by Oi (オイ), a Mt. Fuji photographer based here in Fujiyoshida. It lists each day’s rising and setting alignments with an approximate time and a named location, across more than 200 registered shooting points (as of writing), browsable month by month well into the season. His Fujitomo Map companion app draws the day’s Diamond Fuji viewing-position line on a map and shows the distance and direction to the summit from any point you tap.

Pearl Fuji — the moon, typically the full moon, rising or setting on the summit — is the lunar counterpart to Diamond Fuji, and the same calendar predicts it too; it is the rarer, stranger photograph of the two. One framing note the site itself insists on: its figures are calculated by its own method and carry margins of error, spots can be obstructed or inaccessible, and nothing there is an official event schedule. My workflow: shortlist candidate evenings there, then confirm against the official pages in this guide before committing a trip.

The five I would actually plan around

Photographing it without hurting anything

The working kit is short: a travel tripod, because the light drops fast around the alignment; a spare battery kept warm in an inside pocket, because freezing waits eat charge; and touchscreen gloves, because bare fingers stop working right when the moment arrives. Longer glass rewards you here — 200mm and up isolates the summit — and the radial starburst in the photos comes from a stopped-down aperture, so it belongs to the lens, not the landscape.

Practical notes that survive fact-checking

Weather is the whole game: the sun must be visible at the exact minute it meets the summit, and no forecast fully promises that. Winter viewing spots run well below freezing by alignment time — dress for standing still. Arrive 30–60 minutes before the listed time for your spot; parking and positioning take longer than the event. And check the mountain itself before you commit an evening: my morning visibility report says whether Fuji is out from Fujiyoshida, the weather guide covers the forecast tools, and the seasonal guide explains why the cold months are the clear ones.

One honesty note on tours: standard Fuji day tours run their own itineraries and do not promise Diamond Fuji timing or viewpoints — for the alignment itself, staying overnight near your chosen spot is the plan that works, which is why the Yamanaka and Kawaguchiko bases matter more than the bus.

Frequently asked questions

Sources