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Matsumoto, Nagano Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Matsumoto, Nagano?
Matsumoto, Nagano gets 965 mm of precipitation a year over about 92 rainy days. August is the warmest month (average high 31°C) and January the coldest (average low -6°C).
Humid continental climate
Matsumoto, Nagano has hot summers and chilly winters. Daytime highs range from about 5°C in January to 31°C in August. September is usually the wettest month. The most comfortable time to visit is typically April to June and October, when daytime highs sit near 22°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | -5° | 7° |
| Spring | Mar–May | 4° | 18° |
| Summer | Jun–Aug | 18° | 29° |
| Autumn | Sep–Nov | 8° | 20° |
How much rain does Matsumoto get?
Matsumoto gets 965 mm of precipitation in an average year, spread over about 92 days with measurable rain. That is fewer rainy days than 90% of Japan.
September is the wettest month, with 142 mm. December is the driest, with 29 mm. July has the most rainy days, about 11.
The longest dry spell in the last five years lasted 31 days, to August 19, 2026.
From October 2025 to September 2026 Matsumoto got 1623 mm of rain, against a normal of 965 mm for those months. September 2026 had the most, with 907 mm.
Matsumoto weather by month
Matsumoto weather in January
In January, Matsumoto averages a high of 5°C and a low of -6°C. It gets 36 mm of precipitation over about 6 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The January record high is 18°C (1996) and the record low is -16°C (1970).
Matsumoto weather in February
In February, Matsumoto averages a high of 7°C and a low of -6°C. It gets 34 mm of precipitation over about 6 rainy days. Estimated sunshine is 41% of daylight hours, derived from ERA5 cloud cover. The February record high is 21°C (1996) and the record low is -16°C (1981).
Matsumoto weather in March
In March, Matsumoto averages a high of 11°C and a low of -2°C. It gets 71 mm of precipitation over about 8 rainy days. Estimated sunshine is 42% of daylight hours, derived from ERA5 cloud cover. The March record high is 26°C (2025) and the record low is -13°C (1984).
Matsumoto weather in April
In April, Matsumoto averages a high of 18°C and a low of 3°C. It gets 72 mm of precipitation over about 7 rainy days. Estimated sunshine is 42% of daylight hours, derived from ERA5 cloud cover. The April record high is 31°C (2018) and the record low is -7°C (1987). April is one of the most comfortable months to visit.
Matsumoto weather in May
In May, Matsumoto averages a high of 24°C and a low of 9°C. It gets 89 mm of precipitation over about 8 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The May record high is 33°C (2025) and the record low is -1°C (1972). May is one of the most comfortable months to visit.
Matsumoto weather in June
In June, Matsumoto averages a high of 27°C and a low of 15°C. It gets 111 mm of precipitation over about 10 rainy days. Estimated sunshine is 23% of daylight hours, derived from ERA5 cloud cover. The June record high is 37°C (2022) and the record low is 5°C (1978). June is one of the most comfortable months to visit.
Matsumoto weather in July
In July, Matsumoto averages a high of 30°C and a low of 19°C. It gets 116 mm of precipitation over about 11 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The July record high is 37°C (2024) and the record low is 11°C (1976).
Matsumoto weather in August
In August, Matsumoto averages a high of 31°C and a low of 20°C. It gets 91 mm of precipitation over about 8 rainy days. Estimated sunshine is 33% of daylight hours, derived from ERA5 cloud cover. The August record high is 38°C (2020) and the record low is 12°C (1981).
Matsumoto weather in September
In September, Matsumoto averages a high of 26°C and a low of 16°C. It gets 142 mm of precipitation over about 10 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The September record high is 36°C (2010) and the record low is 4°C (1992).
Matsumoto weather in October
In October, Matsumoto averages a high of 20°C and a low of 8°C. It gets 123 mm of precipitation over about 7 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The October record high is 29°C (2019) and the record low is -3°C (1983). October is one of the most comfortable months to visit.
Matsumoto weather in November
In November, Matsumoto averages a high of 14°C and a low of 2°C. It gets 49 mm of precipitation over about 6 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The November record high is 26°C (2023) and the record low is -7°C (1973).
Matsumoto weather in December
In December, Matsumoto averages a high of 8°C and a low of -3°C. It gets 29 mm of precipitation over about 6 rainy days. Estimated sunshine is 41% of daylight hours, derived from ERA5 cloud cover. The December record high is 21°C (2018) and the record low is -14°C (1973).
Sunshine, humidity and wind in Matsumoto
November is the sunniest month in Matsumoto, with estimated sunshine of 46% of daylight hours from ERA5 cloud cover. June is the cloudiest, at 23%. The annual cloud-cover estimate is 36% of daylight hours; it is not a measurement of sunshine duration. Matsumoto is cloudier than 72% of Japan.
Humidity peaks in July at 77% and is lowest in April at 59%.
Matsumoto has about 24 days a year above 32°C. Matsumoto is hotter than 64% of Japan.
First and last freeze in Matsumoto
The first fall freeze in Matsumoto typically comes around November 7, and the last spring freeze around April 19. That leaves a frost-free growing season of about 202 days.
Matsumoto weather records
These records cover MATSUMOTO during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Matsumoto station is 38°C, on August 15, 2020. The coldest is -16°C, on February 28, 1981.
The wettest day in the available station history brought 318 mm of precipitation, on July 4, 2026.
48 all-time records have been set at the station since 1970.
The best time to visit Matsumoto
The most comfortable time to visit is typically April to June and October, when daytime highs sit near 22°C.
Winter (December–February) is chilly, with average highs around 7°C and lows near -5°C.
Spring (March–May) is mild, with average highs around 18°C and lows near 4°C.
Summer (June–August) is hot, with average highs around 29°C and lows near 18°C. It can feel humid.
Autumn (September–November) is mild, with average highs around 20°C and lows near 9°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | -6° | 5° | 36 mm | 6 | 64% | 40% | 18° | -16° |
| February | -6° | 7° | 34 mm | 6 | 62% | 41% | 21° | -16° |
| March | -2° | 11° | 71 mm | 8 | 61% | 42% | 26° | -13° |
| April | 3° | 18° | 72 mm | 7 | 59% | 42% | 31° | -7° |
| May | 9° | 24° | 89 mm | 8 | 63% | 32% | 33° | -1° |
| June | 15° | 27° | 111 mm | 10 | 71% | 23% | 37° | 5° |
| July | 19° | 30° | 116 mm | 11 | 77% | 24% | 37° | 11° |
| August | 20° | 31° | 91 mm | 8 | 75% | 33% | 38° | 12° |
| September | 16° | 26° | 142 mm | 10 | 76% | 28% | 36° | 4° |
| October | 8° | 20° | 123 mm | 7 | 74% | 36% | 29° | -3° |
| November | 2° | 14° | 49 mm | 6 | 70% | 46% | 26° | -7° |
| December | -3° | 8° | 29 mm | 6 | 67% | 41% | 21° | -14° |
Station: MATSUMOTO, 2 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Matsumoto climate questions
How much rain does Matsumoto get?
Matsumoto gets 965 mm of precipitation in an average year, over about 92 rainy days.
What is the wettest month in Matsumoto?
September is the wettest month in Matsumoto, with 142 mm. December is the driest, with 29 mm.
How many rainy days does Matsumoto have a year?
Matsumoto has about 92 days with measurable rain in an average year. July has the most, about 11.
What is the hottest month in Matsumoto?
August is the warmest month in Matsumoto, with an average high of 31°C.
What is the coldest month in Matsumoto?
January is the coldest month in Matsumoto, with an average low of -6°C.
What is the record high temperature in Matsumoto?
Within the available 1970–2026 station history, the record high at the Matsumoto station is 38°C, set on August 15, 2020. The record low is -16°C, on February 28, 1981.
What is the sunniest month in Matsumoto?
November is the sunniest month in Matsumoto, with estimated sunshine of 46% of daylight hours from ERA5 cloud cover. June is the cloudiest.
When is the first frost in Matsumoto?
The first fall freeze in Matsumoto typically comes around November 7. The last spring freeze is around April 19.
What is the best time to visit Matsumoto?
The most comfortable time to visit is typically April to June and October, when daytime highs sit near 22°C.