Matsumoto, Nagano Weather by Month and Climate Averages

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).

Matsumoto climate at a glance

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.

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 27 days, to February 9, 2022.

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. The sun is out about 40% of daylight hours. 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. The sun is out about 41% of daylight hours. 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. The sun is out about 42% of daylight hours. 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. The sun is out about 42% of daylight hours. 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. The sun is out about 32% of daylight hours. 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. The sun is out about 23% of daylight hours. 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. The sun is out about 24% of daylight hours. 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. The sun is out about 33% of daylight hours. 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. The sun is out about 28% of daylight hours. 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. The sun is out about 36% of daylight hours. 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. The sun is out about 46% of daylight hours. 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. The sun is out about 41% of daylight hours. 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 sunshine about 46% of daylight hours. June is the cloudiest, at 23%. Over the year the sun shines about 36% of daylight hours. 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

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 on record brought 172 mm of rain, on July 19, 2006.

47 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

MonthPrecipRain daysHumiditySunshineRecord highRecord low
January36 mm664%40%18°-16°
February34 mm662%41%21°-16°
March71 mm861%42%26°-13°
April72 mm759%42%31°-7°
May89 mm863%32%33°-1°
June111 mm1071%23%37°
July116 mm1177%24%37°11°
August91 mm875%33%38°12°
September142 mm1076%28%36°
October123 mm774%36%29°-3°
November49 mm670%46%26°-7°
December29 mm667%41%21°-14°

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?

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 sunshine about 46% of daylight hours. 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.

Source: NOAA GHCN-Daily station MATSUMOTO (2 km away).

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Normals from NOAA GHCN-Daily station MATSUMOTO.