September · Japan
Best time to visit Sapporo in September Weather, crowds & prices
Weather in Sapporo in September
Average temperature 18°C, 132 mm of rain, about 23 days with 6+ hours of sunshine and 80% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
1.7/10
Ranked #10 of 12 months
- Avg temp
- 18°C
- Rainfall
- 132 mm
- Humidity
- 80%
- Days with 6h+ sun
- 23
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Sapporo scores 1.7/10 for snow and ski travel - ranked #10 of 12. Expect around 18°C, 132 mm of rain, and roughly 23 days with 6+ hours of sunshine this month.
Sapporo is Hokkaido's grid-planned city, known for miso ramen, the Snow Festival, and ski hills within easy reach.
September in Sapporo — off-season conditions
September averages 18°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Monthly rainfall reaches 132 mm — wet for this destination — but about 23 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 1.7/10 here, 10th of 12 months, against 9.5/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a waterproof shell rather than an umbrella.
Plan for low-season pricing, with crowds are light for this destination.
Flexible dates? January scores 7.8 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Sapporo in September?
- In September, Sapporo averages 18°C, 132 mm of rain, and about 23 days with 6+ hours of sunshine. Its climate-comfort score is 1.7/10.
- Is September a good time to visit Sapporo?
- September earns a 1.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Sapporo in September?
- Expect about 132 mm of rain in September. Average humidity is 80% and there are about 23 days with 6+ hours of sunshine.
Curated in Sapporo
Tickets & experiences
Things to do in Sapporo
Sapporo, Japan. Live activities and tours from GetYourGuide, matched to this destination.