Monthly climate guide
Matsumoto weather in September
With highs near 22°C (72°F) and lows around 13°C (55°F), September feels warm in Matsumoto. Rainfall averages about 199 mm (very wet) and the sky is often cloudy. Daytime highs are 4°C cooler than August and 6°C warmer than October.
What stands out in September
- In Matsumoto, September is early autumn.
- September is Matsumoto's third warmest month.
- It's wetter than a typical month in Matsumoto — roughly 82% more rain than average.
- Temperatures are falling — expect highs around 6°C lower by October.
It's usually the wettest month of the year.
Avg high
22°C
72°F
Avg low
13°C
55°F
Rainfall
199 mm
very wet
Humidity
83%
relative
Sky
71%
cloud · often cloudy
Matsumoto weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 0°C / 31°F | -9°C / 15°F | 39 mm | 87% | 76% |
| February | 2°C / 35°F | -9°C / 17°F | 44 mm | 84% | 72% |
| March | 6°C / 43°F | -4°C / 24°F | 79 mm | 80% | 68% |
| April | 12°C / 54°F | 0°C / 32°F | 92 mm | 76% | 64% |
| May | 19°C / 65°F | 7°C / 44°F | 99 mm | 73% | 64% |
| June | 21°C / 71°F | 12°C / 53°F | 153 mm | 79% | 78% |
| July | 25°C / 77°F | 16°C / 61°F | 198 mm | 82% | 78% |
| August | 26°C / 79°F | 17°C / 63°F | 158 mm | 82% | 69% |
| September | 22°C / 72°F | 13°C / 55°F | 199 mm | 83% | 71% |
| October | 16°C / 61°F | 6°C / 43°F | 160 mm | 84% | 66% |
| November | 10°C / 50°F | 0°C / 32°F | 55 mm | 85% | 67% |
| December | 3°C / 37°F | -5°C / 22°F | 39 mm | 86% | 75% |
What to pack for September
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is September a good time to visit Matsumoto?
Compare the months in the chart above to find your ideal window.
Best time to visit Matsumoto →Other Japan cities in September
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Matsumoto weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/japan/matsumoto/september
<a href="https://weathercompare.eu/weather/japan/matsumoto/september">Matsumoto weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/japan/matsumoto" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Matsumoto weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/japan/matsumoto/september">Matsumoto weather in September</a> – WeatherCompare</p>
Matsumoto in September: quick answers
Is September a good time to visit Matsumoto?
September is one of the wetter months in Matsumoto, with about 199 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Matsumoto in September?
Average highs are about 22°C (72°F) and average lows about 13°C (55°F), based on 10 years of daily data.
Does it rain a lot in Matsumoto in September?
Matsumoto typically gets around 199 mm of rain in September — very wet. It's usually the wettest month of the year.
Figures are long-term averages for the area around Matsumoto (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.