Nagasaki, Nagasaki Weather by Month and Climate Averages

How much rain does Nagasaki get?

Nagasaki gets 1830 mm of precipitation in an average year, spread over about 115 days with measurable rain. That is more rainy days than 51% of Japan.

June is the wettest month, with 326 mm. January is the driest, with 59 mm. June has the most rainy days, about 14.

The longest dry spell in the last five years lasted 21 days, to November 12, 2022.

Nagasaki weather by month

Nagasaki weather in January

In January, Nagasaki averages a high of 11°C and a low of 3°C. It gets 59 mm of precipitation over about 10 rainy days. The sun is out about 39% of daylight hours. The January record high is 21°C (2002) and the record low is -4°C (1970).

Nagasaki weather in February

In February, Nagasaki averages a high of 12°C and a low of 4°C. It gets 76 mm of precipitation over about 9 rainy days. The sun is out about 39% of daylight hours. The February record high is 23°C (2010) and the record low is -4°C (1977).

Nagasaki weather in March

In March, Nagasaki averages a high of 16°C and a low of 7°C. It gets 113 mm of precipitation over about 10 rainy days. The sun is out about 38% of daylight hours. The March record high is 24°C (2007) and the record low is -3°C (1977).

Nagasaki weather in April

In April, Nagasaki averages a high of 20°C and a low of 11°C. It gets 145 mm of precipitation over about 9 rainy days. The sun is out about 38% of daylight hours. The April record high is 29°C (1998) and the record low is 1°C (1972). April is one of the most comfortable months to visit.

Nagasaki weather in May

In May, Nagasaki averages a high of 24°C and a low of 16°C. It gets 162 mm of precipitation over about 10 rainy days. The sun is out about 33% of daylight hours. The May record high is 32°C (1998) and the record low is 4°C (2026). May is one of the most comfortable months to visit.

Nagasaki weather in June

In June, Nagasaki averages a high of 26°C and a low of 20°C. It gets 326 mm of precipitation over about 14 rainy days. The sun is out about 22% of daylight hours. The June record high is 37°C (2004) and the record low is 13°C (1981).

Nagasaki weather in July

In July, Nagasaki averages a high of 31°C and a low of 24°C. It gets 288 mm of precipitation over about 12 rainy days. The sun is out about 26% of daylight hours. The July record high is 38°C (1994) and the record low is 15°C (2026).

Nagasaki weather in August

In August, Nagasaki averages a high of 32°C and a low of 25°C. It gets 204 mm of precipitation over about 10 rainy days. The sun is out about 44% of daylight hours. The August record high is 38°C (2026) and the record low is 19°C (1979).

Nagasaki weather in September

In September, Nagasaki averages a high of 29°C and a low of 22°C. It gets 186 mm of precipitation over about 9 rainy days. The sun is out about 43% of daylight hours. The September record high is 36°C (2022) and the record low is 12°C (1973).

Nagasaki weather in October

In October, Nagasaki averages a high of 24°C and a low of 16°C. It gets 102 mm of precipitation over about 6 rainy days. The sun is out about 56% of daylight hours. The October record high is 32°C (2016) and the record low is 5°C (1970). October is one of the most comfortable months to visit.

Nagasaki weather in November

In November, Nagasaki averages a high of 18°C and a low of 11°C. It gets 96 mm of precipitation over about 8 rainy days. The sun is out about 51% of daylight hours. The November record high is 26°C (1979) and the record low is 1°C (1970). November is one of the most comfortable months to visit.

Nagasaki weather in December

In December, Nagasaki averages a high of 13°C and a low of 6°C. It gets 73 mm of precipitation over about 9 rainy days. The sun is out about 41% of daylight hours. The December record high is 23°C (2018) and the record low is -2°C (1973).

Sunshine, humidity and wind in Nagasaki

October is the sunniest month in Nagasaki, with sunshine about 56% of daylight hours. June is the cloudiest, at 22%. Over the year the sun shines about 39% of daylight hours. Nagasaki is sunnier than 60% of Japan.

Humidity peaks in July at 88% and is lowest in December at 66%.

Nagasaki has about 22 days a year above 32°C. Nagasaki is hotter than 58% of Japan.

Nagasaki weather records

The hottest temperature on record at the Nagasaki station is 38°C, on July 23, 1994. The coldest is -4°C, on January 25, 2016.

The wettest day on record brought 448 mm of rain, on July 23, 1982.

40 all-time records have been set at the station since 1970.

The best time to visit Nagasaki

The most comfortable time to visit is typically April to May and October to November, when daytime highs sit near 22°C.

Winter (December–February) is chilly, with average highs around 12°C and lows near 4°C.

Spring (March–May) is mild, with average highs around 20°C and lows near 11°C.

Summer (June–August) is hot, with average highs around 30°C and lows near 23°C. It can feel humid.

Autumn (September–November) is warm, with average highs around 24°C and lows near 16°C.

Nagasaki climate questions

How much rain does Nagasaki get?

Nagasaki gets 1830 mm of precipitation in an average year, over about 115 rainy days.

What is the wettest month in Nagasaki?

June is the wettest month in Nagasaki, with 326 mm. January is the driest, with 59 mm.

How many rainy days does Nagasaki have a year?

Nagasaki has about 115 days with measurable rain in an average year. June has the most, about 14.

What is the hottest month in Nagasaki?

August is the warmest month in Nagasaki, with an average high of 32°C.

What is the coldest month in Nagasaki?

January is the coldest month in Nagasaki, with an average low of 3°C.

What is the record high temperature in Nagasaki?

The record high at the Nagasaki station is 38°C, set on July 23, 1994. The record low is -4°C, on January 25, 2016.

What is the sunniest month in Nagasaki?

October is the sunniest month in Nagasaki, with sunshine about 56% of daylight hours. June is the cloudiest.

What is the best time to visit Nagasaki?

The most comfortable time to visit is typically April to May and October to November, when daytime highs sit near 22°C.