Winter 2025/26 in Niseko: Long-Range Snow Forecast & Predictions

Winter 2025/26 snow forecast for Niseko looks promising, with an early start to the season and powder-filled days ahead.

The latest predictions from the Japan Meteorological Agency indicate a promising start to the upcoming winter season, with early conditions looking favourable for snowfall. While long-term patterns can shift, the outlook suggests that Niseko skiers and snowboarders could enjoy a strong beginning to the season with plenty of powder days on the horizon.

La Niña Weakens, But Niseko’s Early Winter Looks Promising

With many shifting factors in long-term forecasting, such as ocean surface temperatures, subsurface changes, and atmospheric winds, regular analysis is essential to understand what lies ahead. Current predictions point to only a weaker appearance of La Niña in the coming months. While its influence may be felt in the early season, particularly in December, conditions are expected to normalise as the season progresses. A strong start could echo last year’s record-breaking December, which delivered day after day of dreamy powder. Even if the latter half of the season levels out to more typical patterns, Niseko’s seasonal average of around 15 metres of snowfall ensures an extraordinary winter on the slopes.

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Seasonal Snowfall Forecast (Dec–Feb)

The countdown is on - make your plans, book your stay, and get set for Niseko’s magical winter.