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Monthly climate in Hiroo, Hokkaido, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Hiroo features a humid continental climate (Dfb).Temperatures typically range between -5 °C (24 °F) and 19 °C (67 °F) through the year, but rarely can drop to -19 °C (-2 °F) or can rise to as high as 30 °C (86 °F).The average annual precipitation amounts to about 1317 mm (51.9 inches) and receives 129 rainy days on the 1 mm (0.04 inches) threshold annually.Hiroo enjoys an average of 3007 hours of sunshine throughout the year, and daylight varies from 9 hours 7 minutes to 15 hours 12 minutes per day.

Monthly average temperatures in Hiroo, Hokkaido, Japan §

The warmest months in Hiroo are July, August and September, with daily mean temperatures ranging from 17 to 19 °C (63 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -5 to -1 °C (24 - 30 °F) throughout the day. On average each year, Hiroo experiences 11 days above 25 °C (77.0 °F) and 120 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hiroo, 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
(44°F)		 7°C
(44°F)		 13°C
(56°F)		 18°C
(64°F)		 29°C
(84°F)		 25°C
(77°F)		 30°C
(86°F)		 30°C
(86°F)		 29°C
(84°F)		 23°C
(73°F)		 17°C
(62°F)		 13°C
(56°F)
Mean maximum 4°C
(40°F)		 5°C
(41°F)		 10°C
(51°F)		 15°C
(60°F)		 22°C
(72°F)		 20°C
(69°F)		 27°C
(81°F)		 29°C
(85°F)		 26°C
(79°F)		 22°C
(72°F)		 16°C
(60°F)		 10°C
(50°F)
Average high -1°C
(30°F)		 -1°C
(31°F)		 4°C
(40°F)		 9°C
(48°F)		 14°C
(58°F)		 17°C
(63°F)		 21°C
(70°F)		 22°C
(72°F)		 20°C
(69°F)		 15°C
(60°F)		 9°C
(49°F)		 2°C
(36°F)
Daily mean -5°C
(24°F)		 -4°C
(25°F)		 1°C
(34°F)		 5°C
(42°F)		 11°C
(52°F)		 14°C
(58°F)		 18°C
(65°F)		 19°C
(67°F)		 17°C
(63°F)		 12°C
(54°F)		 6°C
(43°F)		 -1°C
(30°F)
Average low -9°C
(17°F)		 -8°C
(17°F)		 -3°C
(27°F)		 2°C
(36°F)		 8°C
(46°F)		 11°C
(53°F)		 16°C
(61°F)		 17°C
(63°F)		 14°C
(58°F)		 9°C
(48°F)		 3°C
(37°F)		 -4°C
(25°F)
Mean minimum -14°C
(7°F)		 -15°C
(6°F)		 -10°C
(14°F)		 -3°C
(27°F)		 3°C
(38°F)		 8°C
(46°F)		 12°C
(53°F)		 13°C
(56°F)		 8°C
(48°F)		 3°C
(38°F)		 -3°C
(27°F)		 -10°C
(14°F)
Minimum -17°C
(2°F)		 -19°C
(-2°F)		 -12°C
(10°F)		 -6°C
(22°F)		 2°C
(36°F)		 6°C
(43°F)		 9°C
(49°F)		 11°C
(52°F)		 5°C
(41°F)		 2°C
(35°F)		 -6°C
(22°F)		 -11°C
(12°F)

Compare climate in Hiroo with other places

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

Monthly average precipitation in Hiroo, Hokkaido, Japan §

Hiroo usually has the most precipitation in August, September and October, with an average of 13 rainy days and 172 mm (6.8 inches) of precipitation per month.The driest months in Hiroo are January, February and December. On average, 64 mm (2.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hiroo, 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) 61 (2.4) 65 (2.6) 115 (4.5) 97 (3.8) 95 (3.7) 105 (4.1) 106 (4.2) 175 (6.9) 140 (5.5) 201 (7.9) 90 (3.6) 66 (2.6)
Average precipitation days (≥ 1 mm) 8 9 10 12 11 10 11 12 13 14 10 9

Monthly sunshine hours in Hiroo, Hokkaido, Japan §

The sunniest months in Hiroo are May, June and July, when the sun shines an average of 9 hours 41 minutes a day.Least sunny months in Hiroo: January, November and December receive an average of 6 hours 19 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hiroo, 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 172 219 271 287 308 294 287 269 254 231 202 206
Mean daily daylight hours 9h 27m 10h 32m 11h 56m 13h 22m 14h 35m 15h 12m 14h 53m 13h 49m 12h 27m 11h 2m 9h 47m 9h 7m

Solar UV radiation in Hiroo, Hokkaido, Japan §

Hiroo experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 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 Hiroo UV Index data.

Average daily maximum UV levels by month for Hiroo, 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 6 8 9 10 10 10 8 6 3 2