nomadseason

Monthly climate in Yamagata, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Yamagata features a humid continental climate (Dfa).Temperatures typically range between -2 °C (29 °F) and 24 °C (75 °F) through the year, but rarely can drop to -16 °C (4 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 1586 mm (62.4 inches) and receives 198 rainy days on the 1 mm (0.04 inches) threshold annually.Yamagata enjoys an average of 2870 hours of sunshine throughout the year, and daylight varies from 9 hours 33 minutes to 14 hours 45 minutes per day.

Monthly average temperatures in Yamagata, Japan §

The warmest months in Yamagata 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 -2 to 1 °C (29 - 34 °F) throughout the day. On average each year, Yamagata experiences 53 days above 25 °C (77.0 °F) and 104 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in 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
(46°F)		 11°C
(52°F)		 19°C
(66°F)		 25°C
(77°F)		 31°C
(88°F)		 32°C
(90°F)		 33°C
(92°F)		 36°C
(97°F)		 33°C
(91°F)		 27°C
(81°F)		 21°C
(70°F)		 16°C
(62°F)
Mean maximum 6°C
(42°F)		 8°C
(47°F)		 17°C
(62°F)		 22°C
(72°F)		 27°C
(81°F)		 28°C
(82°F)		 32°C
(90°F)		 33°C
(92°F)		 29°C
(85°F)		 25°C
(77°F)		 18°C
(65°F)		 11°C
(53°F)
Average high 2°C
(35°F)		 2°C
(37°F)		 8°C
(46°F)		 13°C
(56°F)		 20°C
(68°F)		 23°C
(74°F)		 26°C
(80°F)		 28°C
(82°F)		 23°C
(74°F)		 17°C
(63°F)		 12°C
(53°F)		 4°C
(40°F)
Daily mean -2°C
(29°F)		 -1°C
(31°F)		 4°C
(39°F)		 8°C
(47°F)		 15°C
(59°F)		 19°C
(66°F)		 23°C
(73°F)		 24°C
(75°F)		 19°C
(67°F)		 13°C
(56°F)		 7°C
(45°F)		 1°C
(34°F)
Average low -5°C
(24°F)		 -4°C
(25°F)		 -0°C
(31°F)		 3°C
(38°F)		 10°C
(50°F)		 15°C
(58°F)		 20°C
(68°F)		 21°C
(70°F)		 16°C
(60°F)		 10°C
(49°F)		 3°C
(38°F)		 -2°C
(29°F)
Mean minimum -12°C
(11°F)		 -10°C
(14°F)		 -7°C
(19°F)		 -3°C
(27°F)		 4°C
(39°F)		 10°C
(50°F)		 15°C
(60°F)		 15°C
(60°F)		 9°C
(48°F)		 3°C
(37°F)		 -3°C
(26°F)		 -8°C
(19°F)
Minimum -16°C
(4°F)		 -14°C
(7°F)		 -13°C
(9°F)		 -5°C
(24°F)		 2°C
(36°F)		 7°C
(44°F)		 14°C
(57°F)		 12°C
(53°F)		 7°C
(44°F)		 2°C
(36°F)		 -6°C
(22°F)		 -10°C
(13°F)

Compare climate in Yamagata with other places

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

Monthly average precipitation in Yamagata, Japan §

Yamagata usually has the most precipitation in July, August and October, with an average of 16 rainy days and 195 mm (7.7 inches) of precipitation per month.The driest months in Yamagata are May, June and November. On average, 90 mm (3.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in 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) 125 (4.9) 116 (4.5) 119 (4.7) 116 (4.6) 93 (3.7) 98 (3.8) 239 (9.4) 194 (7.6) 110 (4.3) 151 (5.9) 80 (3.1) 146 (5.7)
Average precipitation days (≥ 1 mm) 21 20 18 13 13 13 18 18 14 13 14 23

Monthly sunshine hours in Yamagata, Japan §

The sunniest months in Yamagata are May, June and August, when the sun shines an average of 9 hours 20 minutes a day.Least sunny months in Yamagata: January, February and December receive an average of 6 hours 6 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in 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 158 208 251 267 295 283 264 281 248 211 212 188
Mean daily daylight hours 9h 49m 10h 45m 11h 57m 13h 11m 14h 13m 14h 45m 14h 29m 13h 34m 12h 24m 11h 10m 10h 6m 9h 33m

Solar UV radiation in Yamagata, Japan §

Yamagata experiences the highest level of ultraviolet (UV) radiation in May, 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, November 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 Yamagata UV Index data.

Average daily maximum UV levels by month for 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 5 7 9 10 10 11 11 9 6 4 3