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Monthly climate in Uonuma, Niigata, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Uonuma features a humid subtropical climate (Cfa).Temperatures typically range between 0 °C (31 °F) and 25 °C (77 °F) through the year, but rarely can drop to -14 °C (8 °F) or can rise to as high as 35 °C (96 °F).The average annual precipitation amounts to about 2642 mm (104.0 inches) and receives 234 rainy days on the 1 mm (0.04 inches) threshold annually.Uonuma enjoys an average of 2939 hours of sunshine throughout the year, and daylight varies from 9 hours 38 minutes to 14 hours 40 minutes per day.

Monthly average temperatures in Uonuma, Niigata, Japan §

The warmest months in Uonuma are July, August and September, with daily mean temperatures ranging from 21 to 25 °C (69 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 2 °C (31 - 35 °F) throughout the day. On average each year, Uonuma experiences 69 days above 25 °C (77.0 °F) and 92 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Uonuma, 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 12°C
(54°F)		 14°C
(57°F)		 20°C
(69°F)		 26°C
(79°F)		 31°C
(88°F)		 31°C
(88°F)		 35°C
(95°F)		 35°C
(96°F)		 34°C
(94°F)		 30°C
(86°F)		 24°C
(75°F)		 20°C
(68°F)
Mean maximum 8°C
(47°F)		 10°C
(51°F)		 17°C
(63°F)		 23°C
(74°F)		 28°C
(83°F)		 28°C
(83°F)		 33°C
(91°F)		 35°C
(95°F)		 31°C
(88°F)		 27°C
(81°F)		 21°C
(69°F)		 14°C
(57°F)
Average high 2°C
(37°F)		 3°C
(38°F)		 8°C
(48°F)		 14°C
(58°F)		 21°C
(70°F)		 23°C
(75°F)		 27°C
(82°F)		 29°C
(85°F)		 25°C
(77°F)		 19°C
(66°F)		 13°C
(55°F)		 5°C
(42°F)
Daily mean -0°C
(31°F)		 0°C
(32°F)		 4°C
(39°F)		 9°C
(49°F)		 16°C
(61°F)		 19°C
(67°F)		 24°C
(75°F)		 25°C
(77°F)		 21°C
(69°F)		 15°C
(59°F)		 8°C
(47°F)		 2°C
(35°F)
Average low -3°C
(26°F)		 -3°C
(27°F)		 -0°C
(32°F)		 4°C
(40°F)		 11°C
(52°F)		 15°C
(59°F)		 20°C
(69°F)		 21°C
(71°F)		 17°C
(63°F)		 11°C
(52°F)		 4°C
(40°F)		 -2°C
(29°F)
Mean minimum -9°C
(15°F)		 -8°C
(18°F)		 -6°C
(21°F)		 -3°C
(26°F)		 4°C
(39°F)		 10°C
(51°F)		 18°C
(64°F)		 17°C
(62°F)		 11°C
(52°F)		 5°C
(41°F)		 -4°C
(25°F)		 -9°C
(16°F)
Minimum -11°C
(13°F)		 -14°C
(8°F)		 -10°C
(14°F)		 -8°C
(18°F)		 3°C
(38°F)		 8°C
(47°F)		 16°C
(61°F)		 13°C
(55°F)		 9°C
(48°F)		 3°C
(38°F)		 -7°C
(19°F)		 -11°C
(12°F)

Compare climate in Uonuma with other places

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

Monthly average precipitation in Uonuma, Niigata, Japan §

Uonuma usually has the most precipitation in January, July and December, with an average of 22 rainy days and 303 mm (11.9 inches) of precipitation per month.The driest months in Uonuma are April, May and June. On average, 172 mm (6.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Uonuma, 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) 254 (10.0) 244 (9.6) 193 (7.6) 171 (6.7) 168 (6.6) 177 (7.0) 371 (14.6) 195 (7.7) 180 (7.1) 228 (9.0) 178 (7.0) 283 (11.2)
Average precipitation days (≥ 1 mm) 22 23 20 17 16 16 22 21 19 16 18 24

Monthly sunshine hours in Uonuma, Niigata, Japan §

The sunniest months in Uonuma are May, June and August, when the sun shines an average of 9 hours 33 minutes a day.Least sunny months in Uonuma: January, February and December receive an average of 6 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Uonuma, 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 162 211 254 278 301 284 271 293 249 217 215 199
Mean daily daylight hours 9h 54m 10h 48m 11h 57m 13h 9m 14h 9m 14h 40m 14h 24m 13h 32m 12h 23m 11h 12m 10h 10m 9h 38m

Solar UV radiation in Uonuma, Niigata, Japan §

Uonuma experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the 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 5. For more detailed information, check out our hourly Uonuma UV Index data.

Average daily maximum UV levels by month for Uonuma, 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) 4 5 8 9 10 11 11 11 9 7 5 3