September · Japan
Best time to visit Matsumoto in September Weather, crowds & prices
Weather in Matsumoto in September
Average temperature 19°C, 186 mm of rain, about 12 days with 6+ hours of sunshine and 87% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
5.7/10
Ranked #6 of 12 months
- Avg temp
- 19°C
- Rainfall
- 186 mm
- Humidity
- 87%
- Days with 6h+ sun
- 12
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Matsumoto scores 5.7/10 for sightseeing and cultural travel - an above-average month (#6 of 12). Expect around 19°C, 186 mm of rain, and roughly 12 days with 6+ hours of sunshine this month.
Matsumoto's black-walled castle and the Japanese Alps make it a gateway to the northern highlands.
September in Matsumoto: mixed conditions, plan around the weather
At 19°C (67°F) this is comfortable city weather in September, with sightseeing easiest before lunch and after the afternoon peak.
186 mm of rain signals a properly wet month, with only about 12 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 5.7/10 on the same scale — 6th of 12 months, versus 6.7/10 for the best month here.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
Budget for mid-season pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Matsumoto in September?
- In September, Matsumoto averages 19°C, 186 mm of rain, and about 12 days with 6+ hours of sunshine. Its climate-comfort score is 5.7/10.
- Is September a good time to visit Matsumoto?
- September earns a 5.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Matsumoto in September?
- Expect about 186 mm of rain in September. Average humidity is 87% and there are about 12 days with 6+ hours of sunshine.
Curated in Matsumoto
Tickets & experiences
Things to do in Matsumoto
Matsumoto, Japan. Live activities and tours from GetYourGuide, matched to this destination.