Mount Fuji Welcomes Its First Snowcap of the Season
Mount Fuji has recorded its first snowcap of the season, marking the arrival of colder weather around Japan’s iconic mountain. This year, however, the announcement came with a significant change in how the snowfall was confirmed.
The Japan Meteorological Agency (JMA) announced the first snowfall shortly after 8 a.m. on Friday, despite clouds obscuring the summit. Snow was confirmed along the mountainside using an automated observation system.
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Japan Moves Beyond Traditional Visual Checks
For the first time since observations began in 1894, the JMA did not rely on staff visually checking Mount Fuji from Kofu to determine the season’s first snowcap.
Instead, the agency used a combination of weather radar, satellite imagery and automated observation data to assess snowfall and snow depth.
The new approach allows officials to confirm snowfall even when the summit is hidden by clouds, visibility is poor or observations take place at night.
Why This Year’s Date Is Different
Under the previous observation method, Mount Fuji’s first snowcap appeared on an average of October 2. In 2025, the first snowfall was observed on October 23.
The JMA has cautioned that these dates cannot be directly compared with the 2026 announcement because the agency has changed its observation method.
The shift highlights how modern weather-monitoring technology is changing the way seasonal conditions are recorded in Japan.
Freezing Temperatures Signal the Arrival of Winter
Temperatures at Mount Fuji’s summit reportedly fell to minus 9.4°C, providing conditions suitable for snowfall. The snow-covered peak is expected to become visible once the clouds clear.
Mount Fuji’s first snowcap is a familiar seasonal milestone and attracts attention from residents, weather observers and tourists. The mountain’s changing appearance also signals the transition towards winter in the surrounding region.
Final Word
Mount Fuji’s first snowcap of the season marks the beginning of a colder period, while the JMA’s new monitoring system represents a major change in how the event is documented. By combining radar, satellite images and automated data, Japan can confirm snowfall more reliably even when traditional visual observation is not possible.
