Niigata Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from very warm to chilly in Niigata. Typically, average maximum daytime temperatures range from a very warm 30°C (86°F) in August to a chilly 7°C (45°F) in the coolest month, February.

Nights vary from 24°C (75°F) in August to around 1°C (34°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Niigata has a relatively rain/snowy climate with high precipitation levels, averaging 1900 mm (75 in) of rain/snowfall annually. The climate in Niigata shows significant variation throughout the year. Expect heavy rainfall in July, the wettest month, with an average of 234 mm (9.2 in) of precipitation over 18 rainy days.

In contrast, the driest month April offers drier and sunnier days, with around 104 mm (4.1 in) of rainfall over 17 rainy days. For more details, please visit our Niigata Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

For those who appreciate different seasons, Niigata serves as an ideal destination. Expect longer, more sun-filled days in August with an average of 7.0 hours of sunshine daily, and embrace the darker days in January, offering only 1.9 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Niigata.

The city experiences its highest humidity in July, reaching 78%. In April, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year