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Monthly climate in Niigata, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Niigata features a humid subtropical climate (Cfa).Temperatures typically range between 5 °C (41 °F) and 27 °C (81 °F) through the year, but rarely can drop to -2 °C (28 °F) or can rise to as high as 35 °C (95 °F).The average annual precipitation amounts to about 1972 mm (77.6 inches) and receives 210 rainy days on the 1 mm (0.04 inches) threshold annually.Niigata enjoys an average of 2940 hours of sunshine throughout the year, and daylight varies from 9 hours 34 minutes to 14 hours 43 minutes per day.

Monthly average temperatures in Niigata, Japan §

The warmest months in Niigata are July, August and September, with daily mean temperatures ranging from 23 to 27 °C (74 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 7 °C (41 - 45 °F) throughout the day. On average each year, Niigata experiences 59 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Niigata, Japan.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 13°C
(55°F)		 15°C
(59°F)		 17°C
(64°F)		 22°C
(72°F)		 26°C
(79°F)		 28°C
(83°F)		 34°C
(94°F)		 35°C
(95°F)		 34°C
(94°F)		 28°C
(82°F)		 21°C
(70°F)		 18°C
(65°F)
Mean maximum 10°C
(51°F)		 12°C
(54°F)		 15°C
(60°F)		 19°C
(67°F)		 24°C
(76°F)		 25°C
(77°F)		 30°C
(87°F)		 33°C
(92°F)		 30°C
(87°F)		 26°C
(78°F)		 21°C
(70°F)		 15°C
(59°F)
Average high 6°C
(43°F)		 7°C
(44°F)		 10°C
(50°F)		 13°C
(56°F)		 19°C
(66°F)		 22°C
(72°F)		 27°C
(81°F)		 29°C
(84°F)		 25°C
(78°F)		 20°C
(69°F)		 15°C
(59°F)		 9°C
(49°F)
Daily mean 5°C
(41°F)		 5°C
(41°F)		 8°C
(46°F)		 11°C
(52°F)		 16°C
(62°F)		 20°C
(69°F)		 25°C
(78°F)		 27°C
(81°F)		 23°C
(74°F)		 18°C
(65°F)		 13°C
(55°F)		 7°C
(45°F)
Average low 3°C
(38°F)		 3°C
(38°F)		 5°C
(42°F)		 9°C
(48°F)		 14°C
(57°F)		 18°C
(65°F)		 23°C
(75°F)		 25°C
(78°F)		 21°C
(71°F)		 16°C
(62°F)		 11°C
(51°F)		 5°C
(42°F)
Mean minimum -0°C
(32°F)		 0°C
(32°F)		 2°C
(35°F)		 5°C
(41°F)		 9°C
(49°F)		 15°C
(60°F)		 21°C
(69°F)		 22°C
(71°F)		 17°C
(63°F)		 12°C
(54°F)		 6°C
(43°F)		 2°C
(36°F)
Minimum -2°C
(28°F)		 -1°C
(31°F)		 0°C
(33°F)		 4°C
(39°F)		 8°C
(47°F)		 13°C
(56°F)		 20°C
(68°F)		 20°C
(68°F)		 16°C
(60°F)		 12°C
(53°F)		 4°C
(39°F)		 0°C
(33°F)

Compare climate in Niigata with other places

Compare temperature, precipitation, sunshine, UV index in Niigata, Japan with other places around the world.

Monthly average precipitation in Niigata, Japan §

Niigata usually has the most precipitation in July, August and December, with an average of 19 rainy days and 248 mm (9.8 inches) of precipitation per month.The driest months in Niigata are April, May and June. On average, 106 mm (4.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Niigata, Japan.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 178 (7.0) 131 (5.1) 112 (4.4) 111 (4.4) 108 (4.3) 100 (4.0) 271 (10.7) 247 (9.7) 158 (6.2) 170 (6.7) 161 (6.3) 226 (8.9)
Average precipitation days (≥ 1 mm) 23 24 16 14 12 12 16 15 15 16 20 27

Monthly sunshine hours in Niigata, Japan §

The sunniest months in Niigata are May, June and August, when the sun shines an average of 10 hours 1 minutes a day.Least sunny months in Niigata: January, February and December receive an average of 5 hours 31 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Niigata, Japan.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 140 189 246 278 308 302 297 311 259 226 207 173
Mean daily daylight hours 9h 51m 10h 46m 11h 57m 13h 10m 14h 12m 14h 43m 14h 28m 13h 34m 12h 24m 11h 11m 10h 7m 9h 34m

Solar UV radiation in Niigata, Japan §

Niigata experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Niigata UV Index data.

Average daily maximum UV levels by month for Niigata, Japan.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 3 4 7 8 9 10 11 11 9 6 4 3