Temperature
Pleasant by day, mild at night.
78°Ftypical Aug high
Niseko is most comfortable in spring. Summers are warm and winters are cold. Humidity is usually low.

Pleasant by day, mild at night.
Recurring showers across the month.
Cloudier spells limit sunshine.
The air feels slightly humid this month.
Mostly cloudy skies.
Want a side-by-side climate view? Compare Niseko with Chamonix.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 25, 2026
Data & methodology