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Monthly climate in Shiraoi, Hokkaido, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Shiraoi features a humid continental climate (Dfb).Temperatures typically range between -4 °C (26 °F) and 20 °C (68 °F) through the year, but rarely can drop to -14 °C (6 °F) or can rise to as high as 28 °C (82 °F).The average annual precipitation amounts to about 1279 mm (50.3 inches) and receives 147 rainy days on the 1 mm (0.04 inches) threshold annually.Shiraoi enjoys an average of 2934 hours of sunshine throughout the year, and daylight varies from 9 hours 6 minutes to 15 hours 13 minutes per day.

Monthly average temperatures in Shiraoi, Hokkaido, Japan §

The warmest months in Shiraoi are July, August and September, with daily mean temperatures ranging from 18 to 20 °C (64 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to -1 °C (26 - 30 °F) throughout the day. On average each year, Shiraoi experiences 6 days above 25 °C (77.0 °F) and 110 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Shiraoi, Hokkaido, 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 6°C
(43°F)		 6°C
(43°F)		 11°C
(52°F)		 15°C
(60°F)		 23°C
(73°F)		 22°C
(72°F)		 27°C
(82°F)		 28°C
(82°F)		 26°C
(80°F)		 23°C
(73°F)		 16°C
(61°F)		 12°C
(54°F)
Mean maximum 4°C
(40°F)		 4°C
(40°F)		 9°C
(48°F)		 13°C
(56°F)		 19°C
(66°F)		 19°C
(66°F)		 25°C
(78°F)		 27°C
(81°F)		 24°C
(76°F)		 21°C
(70°F)		 15°C
(59°F)		 9°C
(49°F)
Average high -1°C
(30°F)		 -1°C
(30°F)		 3°C
(39°F)		 8°C
(46°F)		 13°C
(56°F)		 16°C
(61°F)		 20°C
(69°F)		 22°C
(72°F)		 20°C
(68°F)		 15°C
(59°F)		 8°C
(47°F)		 1°C
(34°F)
Daily mean -4°C
(26°F)		 -3°C
(26°F)		 1°C
(34°F)		 5°C
(42°F)		 10°C
(51°F)		 14°C
(58°F)		 18°C
(66°F)		 20°C
(68°F)		 18°C
(64°F)		 12°C
(54°F)		 6°C
(43°F)		 -1°C
(30°F)
Average low -7°C
(21°F)		 -6°C
(21°F)		 -2°C
(29°F)		 2°C
(36°F)		 8°C
(47°F)		 12°C
(54°F)		 17°C
(63°F)		 18°C
(65°F)		 15°C
(60°F)		 9°C
(49°F)		 3°C
(38°F)		 -4°C
(26°F)
Mean minimum -12°C
(10°F)		 -12°C
(11°F)		 -7°C
(20°F)		 -1°C
(30°F)		 4°C
(40°F)		 8°C
(47°F)		 13°C
(56°F)		 14°C
(57°F)		 10°C
(51°F)		 4°C
(39°F)		 -2°C
(28°F)		 -9°C
(16°F)
Minimum -14°C
(6°F)		 -14°C
(7°F)		 -9°C
(16°F)		 -3°C
(27°F)		 4°C
(39°F)		 7°C
(45°F)		 11°C
(52°F)		 12°C
(54°F)		 8°C
(47°F)		 3°C
(37°F)		 -6°C
(21°F)		 -11°C
(12°F)

Compare climate in Shiraoi with other places

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

Monthly average precipitation in Shiraoi, Hokkaido, Japan §

Shiraoi usually has the most precipitation in August, September and October, with an average of 14 rainy days and 159 mm (6.2 inches) of precipitation per month.The driest months in Shiraoi are January, February and December. On average, 59 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Shiraoi, Hokkaido, 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) 58 (2.3) 53 (2.1) 88 (3.5) 96 (3.8) 92 (3.6) 131 (5.2) 113 (4.4) 194 (7.6) 142 (5.6) 140 (5.5) 107 (4.2) 64 (2.5)
Average precipitation days (≥ 1 mm) 10 10 10 13 10 12 14 15 15 13 12 13

Monthly sunshine hours in Shiraoi, Hokkaido, Japan §

The sunniest months in Shiraoi are May, June and July, when the sun shines an average of 9 hours 52 minutes a day.Least sunny months in Shiraoi: January, November and December receive an average of 5 hours 27 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Shiraoi, Hokkaido, 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 145 197 256 285 302 301 304 283 266 234 183 173
Mean daily daylight hours 9h 26m 10h 32m 11h 56m 13h 22m 14h 36m 15h 13m 14h 54m 13h 50m 12h 27m 11h 1m 9h 46m 9h 6m

Solar UV radiation in Shiraoi, Hokkaido, Japan §

Shiraoi experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure.January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Shiraoi UV Index data.

Average daily maximum UV levels by month for Shiraoi, Hokkaido, 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) 2 3 5 7 9 10 9 10 8 6 3 2