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Monthly climate in Minamiuonuma, Niigata, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Minamiuonuma features a humid subtropical climate (Cfa).Temperatures typically range between -3 °C (28 °F) and 24 °C (75 °F) through the year, but rarely can drop to -19 °C (-2 °F) or can rise to as high as 33 °C (91 °F).The average annual precipitation amounts to about 2571 mm (101.2 inches) and receives 239 rainy days on the 1 mm (0.04 inches) threshold annually.Minamiuonuma enjoys an average of 2939 hours of sunshine throughout the year, and daylight varies from 9 hours 39 minutes to 14 hours 38 minutes per day.

Monthly average temperatures in Minamiuonuma, Niigata, Japan §

The warmest months in Minamiuonuma are July, August and September, with daily mean temperatures ranging from 19 to 24 °C (67 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 0 °C (28 - 32 °F) throughout the day. On average each year, Minamiuonuma experiences 52 days above 25 °C (77.0 °F) and 112 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Minamiuonuma, 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 8°C
(47°F)		 14°C
(57°F)		 20°C
(68°F)		 26°C
(79°F)		 30°C
(86°F)		 30°C
(86°F)		 32°C
(90°F)		 33°C
(91°F)		 31°C
(89°F)		 27°C
(81°F)		 21°C
(71°F)		 18°C
(65°F)
Mean maximum 6°C
(43°F)		 9°C
(48°F)		 16°C
(61°F)		 22°C
(71°F)		 27°C
(82°F)		 26°C
(80°F)		 31°C
(87°F)		 32°C
(90°F)		 28°C
(83°F)		 26°C
(78°F)		 19°C
(66°F)		 12°C
(54°F)
Average high 1°C
(34°F)		 2°C
(35°F)		 7°C
(45°F)		 13°C
(56°F)		 20°C
(68°F)		 22°C
(72°F)		 26°C
(79°F)		 28°C
(82°F)		 23°C
(74°F)		 17°C
(63°F)		 11°C
(52°F)		 4°C
(39°F)
Daily mean -3°C
(28°F)		 -2°C
(29°F)		 3°C
(37°F)		 8°C
(46°F)		 15°C
(58°F)		 18°C
(64°F)		 22°C
(73°F)		 24°C
(75°F)		 19°C
(67°F)		 13°C
(56°F)		 6°C
(44°F)		 -0°C
(32°F)
Average low -6°C
(22°F)		 -6°C
(22°F)		 -2°C
(29°F)		 3°C
(38°F)		 9°C
(49°F)		 14°C
(57°F)		 19°C
(67°F)		 20°C
(69°F)		 16°C
(60°F)		 10°C
(50°F)		 2°C
(36°F)		 -4°C
(25°F)
Mean minimum -12°C
(10°F)		 -11°C
(12°F)		 -8°C
(17°F)		 -5°C
(24°F)		 2°C
(35°F)		 9°C
(48°F)		 16°C
(61°F)		 15°C
(60°F)		 9°C
(49°F)		 3°C
(38°F)		 -6°C
(21°F)		 -12°C
(11°F)
Minimum -14°C
(6°F)		 -19°C
(-2°F)		 -10°C
(14°F)		 -7°C
(20°F)		 1°C
(34°F)		 6°C
(43°F)		 14°C
(58°F)		 10°C
(50°F)		 6°C
(43°F)		 2°C
(36°F)		 -9°C
(17°F)		 -14°C
(7°F)

Compare climate in Minamiuonuma with other places

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

Monthly average precipitation in Minamiuonuma, Niigata, Japan §

Minamiuonuma usually has the most precipitation in July, August and October, with an average of 21 rainy days and 290 mm (11.4 inches) of precipitation per month.The driest months in Minamiuonuma are March, April and November. On average, 162 mm (6.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Minamiuonuma, 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) 199 (7.8) 185 (7.3) 174 (6.9) 167 (6.6) 181 (7.1) 201 (7.9) 376 (14.8) 238 (9.4) 223 (8.8) 256 (10.1) 145 (5.7) 226 (8.9)
Average precipitation days (≥ 1 mm) 22 22 20 18 16 18 24 22 19 18 18 22

Monthly sunshine hours in Minamiuonuma, Niigata, Japan §

The sunniest months in Minamiuonuma are May, June and August, when the sun shines an average of 9 hours 33 minutes a day.Least sunny months in Minamiuonuma: 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 Minamiuonuma, 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 55m 10h 48m 11h 57m 13h 8m 14h 8m 14h 38m 14h 23m 13h 31m 12h 23m 11h 12m 10h 10m 9h 39m

Solar UV radiation in Minamiuonuma, Niigata, Japan §

Minamiuonuma 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 Minamiuonuma UV Index data.

Average daily maximum UV levels by month for Minamiuonuma, 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