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Monthly climate in Rishiri Town, Hokkaido, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Rishiri Town features a humid continental climate (Dfb).Temperatures typically range between -3 °C (27 °F) and 20 °C (68 °F) through the year, but rarely can drop to -14 °C (7 °F) or can rise to as high as 26 °C (79 °F).The average annual precipitation amounts to about 1321 mm (52.0 inches) and receives 182 rainy days on the 1 mm (0.04 inches) threshold annually.Rishiri Town enjoys an average of 2905 hours of sunshine throughout the year, and daylight varies from 8 hours 48 minutes to 15 hours 33 minutes per day.

Monthly average temperatures in Rishiri Town, Hokkaido, Japan §

The warmest months in Rishiri Town 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 -3 to -1 °C (27 - 31 °F) throughout the day. On average each year, Rishiri Town experiences 1 days above 25 °C (77.0 °F) and 97 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Rishiri Town, 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 5°C
(40°F)		 5°C
(41°F)		 8°C
(46°F)		 11°C
(52°F)		 17°C
(62°F)		 17°C
(63°F)		 26°C
(78°F)		 26°C
(79°F)		 25°C
(77°F)		 19°C
(67°F)		 15°C
(59°F)		 12°C
(55°F)
Mean maximum 3°C
(38°F)		 4°C
(39°F)		 6°C
(44°F)		 10°C
(50°F)		 14°C
(57°F)		 15°C
(60°F)		 22°C
(72°F)		 23°C
(74°F)		 23°C
(73°F)		 19°C
(66°F)		 14°C
(57°F)		 8°C
(47°F)
Average high -2°C
(30°F)		 -2°C
(29°F)		 2°C
(36°F)		 6°C
(43°F)		 10°C
(50°F)		 14°C
(57°F)		 19°C
(66°F)		 21°C
(70°F)		 19°C
(67°F)		 14°C
(58°F)		 7°C
(46°F)		 1°C
(33°F)
Daily mean -3°C
(27°F)		 -3°C
(27°F)		 1°C
(34°F)		 5°C
(41°F)		 9°C
(48°F)		 13°C
(55°F)		 18°C
(64°F)		 20°C
(68°F)		 18°C
(65°F)		 13°C
(56°F)		 6°C
(42°F)		 -1°C
(31°F)
Average low -4°C
(25°F)		 -4°C
(25°F)		 -0°C
(32°F)		 4°C
(39°F)		 8°C
(46°F)		 11°C
(53°F)		 17°C
(63°F)		 19°C
(66°F)		 17°C
(63°F)		 12°C
(53°F)		 4°C
(39°F)		 -2°C
(28°F)
Mean minimum -10°C
(15°F)		 -10°C
(14°F)		 -5°C
(23°F)		 -0°C
(32°F)		 4°C
(39°F)		 8°C
(47°F)		 13°C
(55°F)		 16°C
(61°F)		 13°C
(55°F)		 7°C
(44°F)		 -2°C
(28°F)		 -8°C
(18°F)
Minimum -12°C
(10°F)		 -14°C
(7°F)		 -7°C
(20°F)		 -2°C
(29°F)		 2°C
(36°F)		 6°C
(43°F)		 10°C
(51°F)		 15°C
(60°F)		 12°C
(53°F)		 5°C
(42°F)		 -5°C
(22°F)		 -9°C
(16°F)

Compare climate in Rishiri Town with other places

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

Monthly average precipitation in Rishiri Town, Hokkaido, Japan §

Rishiri Town usually has the most precipitation in August, November and December, with an average of 20 rainy days and 162 mm (6.4 inches) of precipitation per month.The driest months in Rishiri Town are March, April and May. On average, 68 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rishiri Town, 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) 108 (4.3) 103 (4.1) 75 (2.9) 50 (2.0) 78 (3.1) 88 (3.5) 104 (4.1) 148 (5.8) 92 (3.6) 136 (5.4) 172 (6.8) 167 (6.6)
Average precipitation days (≥ 1 mm) 21 21 14 9 11 10 8 13 10 16 22 27

Monthly sunshine hours in Rishiri Town, Hokkaido, Japan §

The sunniest months in Rishiri Town are April, May and July, when the sun shines an average of 10 hours 0 minutes a day.Least sunny months in Rishiri Town: January, November and December receive an average of 4 hours 59 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rishiri Town, 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 115 181 239 290 304 289 324 285 283 244 181 162
Mean daily daylight hours 9h 10m 10h 23m 11h 55m 13h 30m 14h 51m 15h 33m 15h 12m 14h 1m 12h 29m 10h 55m 9h 31m 8h 48m

Solar UV radiation in Rishiri Town, Hokkaido, Japan §

Rishiri Town experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 9, 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 Rishiri Town UV Index data.

Average daily maximum UV levels by month for Rishiri Town, 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 6 8 9 9 9 7 5 3 1