Climate of Niigata Prefecture, Japan
Area-weighted average across Niigata Prefecture. For where people actually live and travel, see the cities below.
Niigata Prefecture, a subdivision of Japan, has a strongly continental climate on average. Area-weighted monthly temperatures across the whole territory range from -1.1°C / 30°F in January to 24°C / 75.2°F in August, with rainfall from 108 mm / 4.3 in to 231 mm / 9.1 in depending on the season (1989 mm / 78.3 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | -1.1°C30°F | 215 mm8.5″ | Snowy |
| February | -1°C30.2°F | 154 mm6.1″ | Snowy |
| March | 1.8°C35.2°F | 122 mm4.8″ | Snowy |
| April | 8.4°C47.1°F | 109 mm4.3″ | — |
| May | 14°C57.2°F | 108 mm4.3″ | — |
| June | 18.3°C64.9°F | 148 mm5.8″ | — |
| July | 22.5°C72.5°F | 195 mm7.7″ | — |
| August | 24°C75.2°F | 162 mm6.4″ | — |
| September | 19.5°C67.1°F | 195 mm7.7″ | — |
| October | 13.4°C56.1°F | 164 mm6.5″ | — |
| November | 7.7°C45.9°F | 186 mm7.3″ | — |
| December | 2.2°C36°F | 231 mm9.1″ | — |
Frequently asked questions
What is the best time to visit Niigata Prefecture?
Niigata Prefecture, Japan does not have a clear sunny-and-dry window by our cutoffs. The warmest month is August at 24°C / 75.2°F, and the driest is May at 108 mm / 4.3 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Niigata Prefecture?
Niigata Prefecture, Japan has area-weighted monthly average temperatures ranging from -1.1°C / 30°F in January to 24°C / 75.2°F in August. Annual rainfall averages about 1989 mm / 78.3 in, with the wettest month being December (231 mm / 9.1 in) and the driest May (108 mm / 4.3 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Niigata Prefecture?
The hottest month in Niigata Prefecture is August, with an area-wide average temperature of 24°C / 75.2°F.
What is the coldest month in Niigata Prefecture?
The coldest month in Niigata Prefecture is January, with an area-wide average temperature of -1.1°C / 30°F.
When does it rain most in Niigata Prefecture?
The wettest month in Niigata Prefecture is December, averaging about 231 mm / 9.1 in of rainfall. The driest is May with about 108 mm / 4.3 in.