Niigata, Japan climate
Average temperatures, precipitation and all-time records for Niigata, Japan, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is August, averaging a high of 30°C, and its coldest is January, with an average low of 1°C.
Niigata Prefecture is a prefecture in the Chūbu region of Honshu of Japan. Niigata Prefecture has a population of 2,071,066 and is the fifth-largest prefecture of Japan by geographic area at 12,584.18 km2 (4,858.78 sq mi). via Wikipedia
How today compares
Latest recorded day: 2026-10-15. Each reading placed on Niigata, Japan's own ±7-day seasonal distribution.
Percentiles marked * are pending verification.
Niigata average temperatures by month
Typical daily high and low, and average precipitation, for each month in Niigata, Japan, based on 1980–2026 records. The wettest month is July (8 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 5°C | 1°C | 5 mm |
| February | 6°C | 1°C | 5 mm |
| March | 9°C | 3°C | 5 mm |
| April | 16°C | 8°C | 3 mm |
| May | 21°C | 13°C | 3 mm |
| June | 25°C | 18°C | 3 mm |
| July | 28°C | 22°C | 8 mm |
| August | 30°C | 24°C | 5 mm |
| September | 26°C | 20°C | 5 mm |
| October | 20°C | 14°C | 5 mm |
| November | 14°C | 8°C | 5 mm |
| December | 8°C | 3°C | 5 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
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Record extremes
- Hottest day on record: 38°C on 2018-08-23
- Coldest day on record: -7°C on 2018-01-14
Percentiles compare each day to Niigata, Japan's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →