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Monthly climate in Muroran, Hokkaido, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Muroran features a humid continental climate (Dfb).Temperatures typically range between -1 °C (30 °F) and 21 °C (70 °F) through the year, but rarely can drop to -10 °C (14 °F) or can rise to as high as 27 °C (82 °F).The average annual precipitation amounts to about 1284 mm (50.6 inches) and receives 155 rainy days on the 1 mm (0.04 inches) threshold annually.Muroran enjoys an average of 2896 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 Muroran, Hokkaido, Japan §

The warmest months in Muroran are July, August and September, with daily mean temperatures ranging from 19 to 21 °C (66 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 1 °C (30 - 35 °F) throughout the day. On average each year, Muroran experiences 3 days above 25 °C (77.0 °F) and 80 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Muroran, 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 8°C
(47°F)		 6°C
(43°F)		 10°C
(50°F)		 15°C
(59°F)		 22°C
(73°F)		 20°C
(69°F)		 26°C
(79°F)		 27°C
(82°F)		 27°C
(81°F)		 23°C
(73°F)		 17°C
(62°F)		 13°C
(56°F)
Mean maximum 7°C
(44°F)		 5°C
(41°F)		 8°C
(46°F)		 12°C
(54°F)		 17°C
(63°F)		 18°C
(65°F)		 24°C
(76°F)		 26°C
(79°F)		 24°C
(76°F)		 21°C
(69°F)		 16°C
(61°F)		 11°C
(52°F)
Average high 1°C
(33°F)		 0°C
(33°F)		 4°C
(39°F)		 7°C
(45°F)		 12°C
(54°F)		 16°C
(61°F)		 20°C
(68°F)		 22°C
(72°F)		 20°C
(69°F)		 16°C
(61°F)		 10°C
(50°F)		 3°C
(38°F)
Daily mean -1°C
(30°F)		 -1°C
(30°F)		 2°C
(36°F)		 6°C
(42°F)		 10°C
(50°F)		 14°C
(58°F)		 19°C
(66°F)		 21°C
(70°F)		 19°C
(67°F)		 14°C
(58°F)		 8°C
(46°F)		 1°C
(35°F)
Average low -3°C
(27°F)		 -3°C
(27°F)		 0°C
(33°F)		 4°C
(39°F)		 8°C
(48°F)		 13°C
(55°F)		 18°C
(64°F)		 20°C
(68°F)		 18°C
(64°F)		 13°C
(55°F)		 6°C
(43°F)		 -0°C
(31°F)
Mean minimum -8°C
(17°F)		 -8°C
(18°F)		 -3°C
(26°F)		 1°C
(34°F)		 6°C
(42°F)		 10°C
(50°F)		 15°C
(59°F)		 17°C
(63°F)		 14°C
(58°F)		 8°C
(46°F)		 0°C
(33°F)		 -6°C
(22°F)
Minimum -9°C
(16°F)		 -10°C
(14°F)		 -5°C
(23°F)		 -0°C
(32°F)		 5°C
(41°F)		 9°C
(48°F)		 13°C
(55°F)		 16°C
(61°F)		 13°C
(56°F)		 6°C
(43°F)		 -3°C
(28°F)		 -6°C
(21°F)

Compare climate in Muroran with other places

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

Monthly average precipitation in Muroran, Hokkaido, Japan §

Muroran usually has the most precipitation in July, August and September, with an average of 14 rainy days and 153 mm (6.0 inches) of precipitation per month.The driest months in Muroran are January, February and March. On average, 68 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Muroran, 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) 66 (2.6) 59 (2.3) 81 (3.2) 86 (3.4) 99 (3.9) 126 (5.0) 128 (5.0) 194 (7.7) 137 (5.4) 127 (5.0) 95 (3.8) 86 (3.4)
Average precipitation days (≥ 1 mm) 13 13 9 11 10 11 14 15 13 12 13 21

Monthly sunshine hours in Muroran, Hokkaido, Japan §

The sunniest months in Muroran are May, June and July, when the sun shines an average of 9 hours 42 minutes a day.Least sunny months in Muroran: January, November and December receive an average of 5 hours 22 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Muroran, 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 142 194 252 284 299 294 298 276 264 234 182 169
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 46m 9h 7m

Solar UV radiation in Muroran, Hokkaido, Japan §

Muroran 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 Muroran UV Index data.

Average daily maximum UV levels by month for Muroran, 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