Japan
Niseko in September
🍂 AutumnPleasant and some showers.
🎒 Pack: compact umbrella or rain jacket
Why September scores 9.3What goes into the score
How it works- Weather comfort8.9
- ✓Comfortable temperatures (21.5°C highs / 14.9°C lows)
- ✓Slightly humid (dew point 14.2°C)
- !Wet: ~127 mm rain, ~4 heavy-rain days
- Air quality9.8
- ✓Good (within WHO guideline) (PM2.5 ~6 µg/m³)
- Seasonal hazards10.0
- ·No notable seasonal hazards
- Safety baseline9.0
- ·Normal precautions
| Sep | Jul | |
|---|---|---|
| Score | 9.3 Excellent | 9.2 Excellent |
| Season | 🍂 Autumn | ☀️ Summer |
| High / low | 22° / 15° | 24° / 17° |
| Rain | 127 mm | 113 mm |
| Humidity | dew pt 14° | dew pt 18° |
| PM2.5 | 6 µg/m³ | 7 µg/m³ |
Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast).
Holidays & crowdsSeptember 2027
Long weekendThere's at least one long weekend. Domestic travel picks up and popular spots get busier over those days.
- Silver Week 18–20 Sep · 3 days off in a row
Other public holidays: Autumnal Equinox Day (23 Sep)
National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).
Explore NisekoEvents, sights, food & souvenirs
Check event dates locallyA ski resort area in western Hokkaido beneath Mt Yōtei, famous for very reliable deep powder snow in winter and outdoor activities in summer.
No major events on our calendar for September.
Coming up later
Autumn coloursDate variesUsually early to mid-October
The mountainsides turn red and gold before the first snow.
Why go: A quieter time to visit with clear views; some resort businesses are closed between seasons.
Where: Mt Niseko-Annupuri and around Mt Yōtei
Powder snow seasonDate variesUsually January to February
Cold Siberian air brings frequent heavy snowfalls of light, dry powder.
Why go: This is the busiest and most expensive time; book lodging and ski school places early.
Where: Niseko United ski areas
Niseko United ski resorts
Four interlinked ski areas on Mt Niseko-Annupuri: Grand Hirafu, Hanazono, Niseko Village and Annupuri.
💡 Peak powder is typically January to February; book accommodation well ahead for the Christmas–New Year and Chinese New Year periods.
Mt Yōteigreat in Sep
A symmetrical volcano often called the 'Fuji of Hokkaido', visible from across the valley and climbable in summer.
💡 The hiking season is roughly June to October; it is a long, steep day hike.
Hirafu village
The main resort village with most of the restaurants, bars and accommodation.
Onsen
The area has many hot spring baths, from resort hotels to rustic outdoor pools.
Rafting on the Shiribetsu Rivergreat in Sep
Whitewater rafting is a popular summer activity, at its liveliest with snowmelt in spring.
Hokkaido dairy
Milk, cheese, ice cream and cream puffs from local farms.
💡 Farm shops and cafés in the Niseko area
Hokkaido potatoes and vegetables
The fertile area around Niseko and Kutchan grows potatoes, asparagus and corn.
💡 Roadside stations (michi-no-eki) in summer and autumn
Soup curry
A Hokkaido-style thin, spicy curry with large pieces of vegetables and meat.
💡 Casual restaurants in Hirafu and Kutchan
Hokkaido seafood
Crab, scallops and sea urchin from Hokkaido waters.
💡 Japanese restaurants and izakaya
Hokkaido sweets
Hokkaido is known across Japan for chocolates, cookies and dairy-based sweets.
💡 Convenience stores, supermarkets and airport shops
Local farm products
Jams, cheeses and other produce from Niseko-area farms.
💡 Roadside stations and farm shops