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Monthly climate in Shonai, Yamagata, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Shonai features a humid subtropical climate (Cfa).Temperatures typically range between 0 °C (33 °F) and 25 °C (77 °F) through the year, but rarely can drop to -10 °C (14 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 2232 mm (87.9 inches) and receives 226 rainy days on the 1 mm (0.04 inches) threshold annually.Shonai enjoys an average of 2706 hours of sunshine throughout the year, and daylight varies from 9 hours 29 minutes to 14 hours 49 minutes per day.

Monthly average temperatures in Shonai, Yamagata, Japan §

The warmest months in Shonai are July, August and September, with daily mean temperatures ranging from 20 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 3 °C (33 - 37 °F) throughout the day. On average each year, Shonai experiences 57 days above 25 °C (77.0 °F) and 69 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Shonai, Yamagata, 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)		 11°C
(52°F)		 18°C
(65°F)		 24°C
(76°F)		 30°C
(87°F)		 31°C
(88°F)		 34°C
(94°F)		 36°C
(97°F)		 34°C
(93°F)		 28°C
(82°F)		 22°C
(72°F)		 15°C
(59°F)
Mean maximum 6°C
(44°F)		 8°C
(48°F)		 16°C
(61°F)		 22°C
(71°F)		 27°C
(80°F)		 27°C
(81°F)		 32°C
(90°F)		 34°C
(93°F)		 30°C
(86°F)		 25°C
(78°F)		 19°C
(67°F)		 11°C
(52°F)
Average high 2°C
(36°F)		 3°C
(38°F)		 8°C
(46°F)		 13°C
(56°F)		 20°C
(68°F)		 23°C
(73°F)		 27°C
(81°F)		 28°C
(83°F)		 24°C
(76°F)		 18°C
(65°F)		 12°C
(54°F)		 5°C
(41°F)
Daily mean 0°C
(33°F)		 1°C
(34°F)		 4°C
(40°F)		 9°C
(49°F)		 15°C
(60°F)		 19°C
(67°F)		 24°C
(75°F)		 25°C
(77°F)		 20°C
(69°F)		 15°C
(59°F)		 9°C
(48°F)		 3°C
(37°F)
Average low -2°C
(29°F)		 -2°C
(30°F)		 1°C
(34°F)		 5°C
(41°F)		 11°C
(53°F)		 16°C
(60°F)		 21°C
(69°F)		 22°C
(72°F)		 17°C
(63°F)		 12°C
(53°F)		 6°C
(42°F)		 0°C
(33°F)
Mean minimum -6°C
(21°F)		 -6°C
(21°F)		 -5°C
(23°F)		 -1°C
(30°F)		 6°C
(43°F)		 11°C
(53°F)		 16°C
(62°F)		 17°C
(63°F)		 11°C
(52°F)		 6°C
(43°F)		 -0°C
(32°F)		 -4°C
(25°F)
Minimum -8°C
(18°F)		 -10°C
(15°F)		 -10°C
(14°F)		 -3°C
(27°F)		 4°C
(40°F)		 7°C
(46°F)		 15°C
(59°F)		 15°C
(59°F)		 9°C
(48°F)		 5°C
(41°F)		 -3°C
(27°F)		 -6°C
(22°F)

Compare climate in Shonai with other places

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

Monthly average precipitation in Shonai, Yamagata, Japan §

Shonai usually has the most precipitation in July, August and December, with an average of 21 rainy days and 259 mm (10.2 inches) of precipitation per month.The driest months in Shonai are April, May and June. On average, 143 mm (5.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Shonai, Yamagata, 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) 181 (7.1) 171 (6.7) 147 (5.8) 144 (5.7) 137 (5.4) 147 (5.8) 268 (10.5) 269 (10.6) 169 (6.6) 190 (7.5) 169 (6.7) 241 (9.5)
Average precipitation days (≥ 1 mm) 22 23 19 17 15 14 18 19 17 17 19 26

Monthly sunshine hours in Shonai, Yamagata, Japan §

The sunniest months in Shonai are May, June and August, when the sun shines an average of 9 hours 20 minutes a day.Least sunny months in Shonai: January, February and December receive an average of 4 hours 50 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Shonai, Yamagata, 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 125 168 228 257 292 281 274 284 248 211 186 147
Mean daily daylight hours 9h 46m 10h 43m 11h 57m 13h 13m 14h 17m 14h 49m 14h 33m 13h 37m 12h 24m 11h 9m 10h 3m 9h 29m

Solar UV radiation in Shonai, Yamagata, Japan §

Shonai 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 Shonai UV Index data.

Average daily maximum UV levels by month for Shonai, Yamagata, 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 6 9 9 10 11 11 9 6 4 3