Which Japanese Prefecture Gets the Most Snow?

Ask which part of Japan gets the most snow and most people say Hokkaido. Most people are wrong, and the gap is not small.

We measured snowfall at every one of Japan’s 397 ski areas using one identical method, then averaged by prefecture.

The ranking

Prefecture	Ski areas	Average snowfall per season
Niigata	48	554 cm
Toyama	4	410 cm
Ishikawa	4	391 cm
Yamagata	17	338 cm
Fukushima	24	325 cm
Iwate	11	303 cm
Akita	17	298 cm
Nagano	64	290 cm
Fukui	3	288 cm
Aomori	9	268 cm
Gunma	24	262 cm
Gifu	17	255 cm

Niigata does not merely lead. It averages 35% more snow than second-placed Toyama, across a sample of 48 ski areas rather than four, which makes the figure far more robust than a single-resort record could be.

For scale: Niigata’s average ski area gets more snow than the single snowiest resort in Austria (368 cm), Switzerland (426 cm) or Germany (361 cm).

What falls, not just how much

The same prefectures, with what the snow is like when it falls. Temperature and rain days are medians across each prefecture’s ski areas, over the last three winters.

Prefecture	Average snowfall	Temperature when snowing	Rain days
Niigata	554 cm	−1.6 °C	32%
Toyama	410 cm	−1.4 °C	47%
Ishikawa	391 cm	−1.2 °C	43%
Yamagata	338 cm	−2.1 °C	22%
Fukushima	325 cm	−3.9 °C	14%
Iwate	303 cm	−4.9 °C	10%
Akita	298 cm	−1.5 °C	27%
Nagano	290 cm	−4.4 °C	12%
Gunma	262 cm	−5.7 °C	11%
Hokkaido	220 cm	−4.6 °C	7%

The snowiest prefectures are also the wettest. In Toyama nearly half of winter days bring rain, in Niigata a third. Nagano, Gunma, Iwate and Hokkaido get less snow and far less rain. So the choice is a real one: Niigata for depth; Hokkaido, or the high ground of Nagano and Gunma, for dry snow.

Why Niigata

Look at a map with the wind in mind.

Cold air pours off Siberia and crosses the Sea of Japan. It loads with moisture over warm water for a few hundred kilometres. Then it meets land, and the first thing in its way is the mountain wall that separates Niigata from the rest of Honshu.

Three things line up there and nowhere else does all three:

1. The sea is warm and the fetch is right. The air has enough distance over water to saturate, but not so much that it stabilises.
2. The mountains are close to the coast. Tens of kilometres, not hundreds. The moisture has not had a chance to fall out before the terrain forces it up.
3. The mountains are high enough. 2,000 m of forced ascent wrings out essentially everything.

Move the mountains inland and you get less. Cool the sea and you get less. Niigata sits at the exact intersection.

But Hokkaido has the reputation

Hokkaido’s snow is drier, because Hokkaido is colder. That is a real and important difference — dry snow is what people travel for, and it is why Niseko became an international destination while Yuzawa did not.

But by volume, Honshu’s Sea-of-Japan coast wins clearly. Niseko sits at world rank 526 in our global ranking. Fourteen Niigata ski areas sit in the world top twenty.

The distinction worth holding onto:

• Niigata — the most snow, heavier, lower elevations, occasional rain at the base
• Hokkaido — less snow, but colder and drier, and more reliable snow quality

What is actually in Niigata

The prefecture’s ski areas are not obscure because they are bad. They are obscure because they were built for Tokyo weekenders arriving by train and never needed foreign visitors.

• Yuzawa — a cluster of a dozen areas around a Shinkansen station 75 minutes from Tokyo. Four of them tie for sixth snowiest on earth.
• Myoko — the biggest vertical in Japan at Suginohara, with Seki Onsen (world #19) and Charmant Hiuchi (world #18) nearby.
• Okutadami Maruyama — world #2 and the snowiest in Japan, and so buried that it only opens in spring.
• ARAI — world #24, reopened in 2017 after eleven years closed, now with a serious lift and a tree-skiing policy.

The runners-up are worth a look too

Toyama at 410 cm has only four ski areas, but they sit beneath the Tateyama range — the same mountains that feed Japan’s steepest river and hold the famous spring snow corridor at Murodo, where walls of cleared snow stand many metres high into April.

Yamagata at 338 cm has Zao, with its juhyo — the snow-and-rime-covered fir trees known as snow monsters, and Mount Gassan, which does not open until April and runs into summer.

How this was measured

Daily snowfall summed across each of the twelve winters from 2014/15 to 2025/26, then averaged per season, for all 3,069 ski areas worldwide. Source: Open-Meteo historical data from the ERA5 reanalysis. We use recent seasons rather than a thirty-year normal because snowfall patterns are shifting.

The model reads Hokkaido at about half of what weather stations record and comes close in Niigata and Nagano, so Hokkaido’s place in this table is the one to read loosely. How we check the model →

Two limits matter. The model grid is 10–30 km across, so ski areas in the same valley share a value — this ranking cannot separate neighbours, only regions. And year-to-year swings are large enough that small gaps between prefectures are noise.

Prefecture averages are more reliable than individual resort figures for exactly that reason: averaging 48 ski areas across many grid cells cancels out much of the error. The Niigata-versus-Toyama gap, and the Japan-versus-Europe gap, are far too large to be artefacts.