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Monthly climate in Shiroishi, Miyagi, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Shiroishi features a humid subtropical climate (Cfa).Temperatures typically range between -1 °C (31 °F) and 24 °C (76 °F) through the year, but rarely can drop to -12 °C (11 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 1470 mm (57.9 inches) and receives 181 rainy days on the 1 mm (0.04 inches) threshold annually.Shiroishi enjoys an average of 2881 hours of sunshine throughout the year, and daylight varies from 9 hours 33 minutes to 14 hours 44 minutes per day.

Monthly average temperatures in Shiroishi, Miyagi, Japan §

The warmest months in Shiroishi are July, August and September, with daily mean temperatures ranging from 20 to 24 °C (68 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 2 °C (31 - 36 °F) throughout the day. On average each year, Shiroishi experiences 57 days above 25 °C (77.0 °F) and 90 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Shiroishi, Miyagi, 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 9°C
(49°F)		 15°C
(58°F)		 20°C
(69°F)		 26°C
(79°F)		 31°C
(87°F)		 32°C
(91°F)		 34°C
(94°F)		 36°C
(97°F)		 34°C
(93°F)		 28°C
(82°F)		 21°C
(71°F)		 17°C
(63°F)
Mean maximum 7°C
(45°F)		 11°C
(52°F)		 18°C
(64°F)		 22°C
(72°F)		 27°C
(82°F)		 28°C
(83°F)		 32°C
(90°F)		 33°C
(92°F)		 30°C
(86°F)		 25°C
(78°F)		 19°C
(66°F)		 12°C
(54°F)
Average high 3°C
(37°F)		 4°C
(40°F)		 9°C
(49°F)		 14°C
(58°F)		 20°C
(69°F)		 23°C
(74°F)		 26°C
(80°F)		 28°C
(83°F)		 24°C
(75°F)		 18°C
(64°F)		 13°C
(55°F)		 6°C
(42°F)
Daily mean -1°C
(31°F)		 0°C
(33°F)		 5°C
(41°F)		 9°C
(49°F)		 16°C
(60°F)		 19°C
(66°F)		 23°C
(74°F)		 24°C
(76°F)		 20°C
(68°F)		 14°C
(58°F)		 8°C
(47°F)		 2°C
(36°F)
Average low -4°C
(25°F)		 -3°C
(26°F)		 1°C
(33°F)		 5°C
(40°F)		 11°C
(51°F)		 15°C
(60°F)		 20°C
(68°F)		 21°C
(71°F)		 16°C
(62°F)		 10°C
(51°F)		 4°C
(39°F)		 -1°C
(30°F)
Mean minimum -10°C
(15°F)		 -8°C
(19°F)		 -4°C
(25°F)		 -2°C
(30°F)		 5°C
(40°F)		 10°C
(51°F)		 16°C
(61°F)		 16°C
(62°F)		 10°C
(51°F)		 4°C
(39°F)		 -2°C
(28°F)		 -6°C
(21°F)
Minimum -12°C
(11°F)		 -10°C
(14°F)		 -6°C
(22°F)		 -2°C
(28°F)		 3°C
(38°F)		 8°C
(46°F)		 15°C
(59°F)		 13°C
(56°F)		 7°C
(45°F)		 2°C
(37°F)		 -4°C
(26°F)		 -8°C
(18°F)

Compare climate in Shiroishi with other places

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

Monthly average precipitation in Shiroishi, Miyagi, Japan §

Shiroishi usually has the most precipitation in July, August and October, with an average of 16 rainy days and 207 mm (8.2 inches) of precipitation per month.The driest months in Shiroishi are January, February and November. On average, 65 mm (2.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Shiroishi, Miyagi, 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) 79 (3.1) 69 (2.7) 112 (4.4) 109 (4.3) 106 (4.2) 100 (3.9) 245 (9.6) 183 (7.2) 140 (5.5) 194 (7.6) 46 (1.8) 87 (3.4)
Average precipitation days (≥ 1 mm) 16 16 15 13 14 14 19 19 14 12 11 18

Monthly sunshine hours in Shiroishi, Miyagi, Japan §

The sunniest months in Shiroishi are May, June and August, when the sun shines an average of 9 hours 17 minutes a day.Least sunny months in Shiroishi: January, October and December receive an average of 6 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Shiroishi, Miyagi, 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 161 211 257 272 293 280 260 281 245 207 215 194
Mean daily daylight hours 9h 50m 10h 46m 11h 57m 13h 11m 14h 13m 14h 44m 14h 28m 13h 34m 12h 24m 11h 11m 10h 6m 9h 33m

Solar UV radiation in Shiroishi, Miyagi, Japan §

Shiroishi 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 Shiroishi UV Index data.

Average daily maximum UV levels by month for Shiroishi, Miyagi, 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