Niigata, Niigata Weather by Month and Climate Averages

How much rain does Niigata get?

Niigata gets 1716 mm of precipitation in an average year, spread over about 171 days with measurable rain. That is more rainy days than 94% of Japan.

July is the wettest month, with 216 mm. May is the driest, with 85 mm. January has the most rainy days, about 22.

The longest dry spell in the last five years lasted 38 days, to August 27, 2023.

Niigata weather by month

Niigata weather in January

In January, Niigata averages a high of 6°C and a low of 0°C. It gets 177 mm of precipitation over about 22 rainy days. The sun is out about 24% of daylight hours. The January record high is 16°C (1997) and the record low is -8°C (1984).

Niigata weather in February

In February, Niigata averages a high of 7°C and a low of 0°C. It gets 115 mm of precipitation over about 18 rainy days. The sun is out about 29% of daylight hours. The February record high is 21°C (2004) and the record low is -11°C (1978).

Niigata weather in March

In March, Niigata averages a high of 10°C and a low of 2°C. It gets 99 mm of precipitation over about 15 rainy days. The sun is out about 35% of daylight hours. The March record high is 24°C (2004) and the record low is -6°C (1971).

Niigata weather in April

In April, Niigata averages a high of 16°C and a low of 7°C. It gets 89 mm of precipitation over about 12 rainy days. The sun is out about 41% of daylight hours. The April record high is 31°C (1987) and the record low is -2°C (1970).

Niigata weather in May

In May, Niigata averages a high of 22°C and a low of 12°C. It gets 85 mm of precipitation over about 9 rainy days. The sun is out about 39% of daylight hours. The May record high is 33°C (1998) and the record low is 4°C (1991). May is one of the most comfortable months to visit.

Niigata weather in June

In June, Niigata averages a high of 25°C and a low of 17°C. It gets 110 mm of precipitation over about 10 rainy days. The sun is out about 34% of daylight hours. The June record high is 34°C (2004) and the record low is 9°C (1973). June is one of the most comfortable months to visit.

Niigata weather in July

In July, Niigata averages a high of 29°C and a low of 22°C. It gets 216 mm of precipitation over about 13 rainy days. The sun is out about 33% of daylight hours. The July record high is 38°C (2018) and the record low is 12°C (2026).

Niigata weather in August

In August, Niigata averages a high of 31°C and a low of 23°C. It gets 146 mm of precipitation over about 9 rainy days. The sun is out about 41% of daylight hours. The August record high is 40°C (2018) and the record low is 15°C (1976).

Niigata weather in September

In September, Niigata averages a high of 27°C and a low of 19°C. It gets 132 mm of precipitation over about 12 rainy days. The sun is out about 36% of daylight hours. The September record high is 37°C (2002) and the record low is 9°C (1976). September is one of the most comfortable months to visit.

Niigata weather in October

In October, Niigata averages a high of 21°C and a low of 13°C. It gets 145 mm of precipitation over about 13 rainy days. The sun is out about 35% of daylight hours. The October record high is 33°C (2018) and the record low is 3°C (1983). October is one of the most comfortable months to visit.

Niigata weather in November

In November, Niigata averages a high of 14°C and a low of 7°C. It gets 187 mm of precipitation over about 17 rainy days. The sun is out about 36% of daylight hours. The November record high is 27°C (1977) and the record low is -2°C (1970).

Niigata weather in December

In December, Niigata averages a high of 9°C and a low of 2°C. It gets 215 mm of precipitation over about 22 rainy days. The sun is out about 24% of daylight hours. The December record high is 21°C (2025) and the record low is -7°C (1983).

Sunshine, humidity and wind in Niigata

April is the sunniest month in Niigata, with sunshine about 41% of daylight hours. January is the cloudiest, at 24%. Over the year the sun shines about 34% of daylight hours. Niigata is cloudier than 82% of Japan.

Humidity peaks in July at 85% and is lowest in February at 69%.

Niigata has about 16 days a year above 32°C. Niigata is cooler than 57% of Japan.

First and last freeze in Niigata

The first fall freeze in Niigata typically comes around December 18, and the last spring freeze around March 21. That leaves a frost-free growing season of about 272 days.

Niigata weather records

The hottest temperature on record at the Niigata station is 40°C, on August 23, 2018. The coldest is -11°C, on February 17, 1978.

The wettest day on record brought 265 mm of rain, on August 4, 1998.

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

The best time to visit Niigata

The most comfortable time to visit is typically May to June and September to October, when daytime highs sit near 23°C.

Winter (December–February) is chilly, with average highs around 7°C and lows near 1°C.

Spring (March–May) is mild, with average highs around 16°C and lows near 7°C.

Summer (June–August) is hot, with average highs around 28°C and lows near 21°C. It can feel humid.

Autumn (September–November) is warm, with average highs around 21°C and lows near 13°C.

Niigata climate questions

How much rain does Niigata get?

Niigata gets 1716 mm of precipitation in an average year, over about 171 rainy days.

What is the wettest month in Niigata?

July is the wettest month in Niigata, with 216 mm. May is the driest, with 85 mm.

How many rainy days does Niigata have a year?

Niigata has about 171 days with measurable rain in an average year. January has the most, about 22.

What is the hottest month in Niigata?

August is the warmest month in Niigata, with an average high of 31°C.

What is the coldest month in Niigata?

January is the coldest month in Niigata, with an average low of 0°C.

What is the record high temperature in Niigata?

The record high at the Niigata station is 40°C, set on August 23, 2018. The record low is -11°C, on February 17, 1978.

What is the sunniest month in Niigata?

April is the sunniest month in Niigata, with sunshine about 41% of daylight hours. January is the cloudiest.

When is the first frost in Niigata?

The first fall freeze in Niigata typically comes around December 18. The last spring freeze is around March 21.

What is the best time to visit Niigata?

The most comfortable time to visit is typically May to June and September to October, when daytime highs sit near 23°C.