SeasonScore
Sapporo, Japan
Photo: Chatama · CC0

Japan

Sapporo in September

🍂 Autumn

Pleasant and often rainy.

🎒 Pack: compact umbrella or rain jacket

Best months: Jun (9.4), May (9.3), Jul (9.2)

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Why September scores 9.1What goes into the score

How it works
🌡️ 23° / 15°C🌧️ 142 mm💧 dew pt 14°🍃 PM2.5 10
  • Weather comfort8.8
    • ✓Comfortable temperatures (23°C highs / 15°C lows)
    • ✓Slightly humid (dew point 14.2°C)
    • !Wet: ~142 mm rain, ~4 heavy-rain days
  • Air quality9.2
    • ✓Good (within WHO guideline) (PM2.5 ~10 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline9.0
    • ·Normal precautions
Compare monthsPut September side by side with another month
SepJun
Score9.1 Excellent9.4 Excellent
Season🍂 Autumn☀️ Summer
High / low23° / 15°22° / 13°
Rain142 mm60 mm
Humiditydew pt 14°dew pt 12°
PM2.510 µg/m³14 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Sapporo weather-station normals. Rainfall: Sapporo weather-station normals (national met service).

Holidays & crowdsSeptember 2027

Long weekend

There'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).

Nature calendarBlossoms, leaves & seasons in Sapporo

  • 2026 forecast: Jozankei Onsen2026 forecast
    Peak from ~9 Oct 2026

    Last year the peak began 16 Oct. JWA expects most of Japan to be on time or a little later than usual this year.

    Source: Japan Weather Association (tenki.jp), forecast 14 Oct 2026

  • Cherry blossom 2026 (what actually happened)2026 actual
    First blooms 18 Apr 2026, full bloom 24 Apr 2026

    Observed by JMA at the city's official sample tree. The 2027 forecast isn't out yet: Japanese weather companies such as the Japan Weather Association usually publish the first one in January, and we add it then.

    Source: Japan Meteorological Agency

  • Cherry blossomTypical dates
    First blooms ~1 May, full bloom ~6 May

    Typical dates (1991–2020 normal). In 2021–2026 first blooms came between 15 Apr and 23 Apr (18 Apr in 2026). Blossoms last about a week after full bloom.

    Source: Japan Meteorological Agency

  • Autumn leaves: Jozankei OnsenTypical dates
    Usually early-Oct to mid-Oct

    Usual peak viewing window for this spot.

    Source: Japan Weather Association (tenki.jp)

  • Snowy daysTypical dates
    Snow likely Nov–Apr (most in Jan: ~29 days)

    Average number of days with snowfall at Sapporo. About 137 cm of snow falls in an average Jan.

    Source: Sapporo weather-station normals (national weather service, via Wikipedia climate table)

Explore SapporoEvents, sights, food & souvenirs

Check event dates locally

Capital of Hokkaido in northern Japan, known for its Snow Festival, miso ramen, beer and access to ski resorts such as Niseko.

Events in September
Sapporo Autumn FestDate variesUsually September

A food festival with Hokkaido produce.

Why go: Busy at lunchtime.

Where: Odori Park

Coming up later

Sapporo Snow FestivalDate variesUsually early February

Large snow and ice sculptures displayed for about a week.

Why go: Hotels book up months ahead.

Where: Odori Park, Susukino and Tsudome

YOSAKOI Soran FestivalDate variesUsually early June

Large groups perform energetic dances.

Why go: Free to watch.

Where: Odori Park and city streets

Sapporo Summer FestivalDate variesUsually late July to mid-August

Beer gardens set up in Odori Park.

Why go: Busy in the evenings.

Where: Odori Park