Niigata Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Niigata.
Climate overview of Niigata
Niigata, Niigata Prefecture, Japan, experiences significant temperature variation throughout the year. Summers bring daytime highs of 30°C (86°F) in August, while winters cool to 7°C (45°F) in January.
The city receives considerable rain/snowfall, with around 1900 mm (75 in) annually. July is the wettest month. It has very warm summers and cold winters. The most sunshine falls in August, with an average of 7.0 hours of daily sunshine.
Niigata Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Niigata - and find the best time to visit.
Monthly Temperature in Niigata
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, January.
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
Rainfall in Niigata
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
Sunshine Hours in Niigata
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
Humidity in Niigata by Month
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
Best Time to Visit Niigata
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, September and October
- Warmest weather: August
- Most sunshine: May and August
- Seasonal pattern: Very warm summers and cold winters
Frequently asked questions about the climate in Niigata
What is the best time to visit Niigata?
May, June, September and October typically offer the most optimal weather in Niigata. In contrast, January, February, March and December tend to have less optimal conditions. Niigata has very warm summers and cold winters.
What temperatures can I expect in Niigata?
Daytime highs range from 7°C (45°F) in January to 30°C (86°F) in August. Nighttime lows range from 1°C (34°F) to 24°C (75°F). Temperatures vary considerably through the year.
How much rain does Niigata get?
Annual rainfall is around 1900 mm (75 in). July is the wettest month with 234 mm (9.2 in), while April is the driest with 104 mm (4.1 in).
How sunny is Niigata?
Niigata receives around 1,663 hours of sunshine per year. August is the sunniest month with 209 hours, while January is the cloudiest with just 58 hours.
Niigata 3-Day Forecast
Niigata on the map
Niigata is highlighted - select any city to see its climate.
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