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Monthly climate in Ashibetsu, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ashibetsu features a humid continental climate (Dfb). Temperatures typically range between -8 °C (18 °F) and 20 °C (68 °F) through the year, but rarely can drop to -23 °C (-8 °F) or can rise to as high as 31 °C (89 °F). The average annual precipitation amounts to about 1346 mm (53.0 inches) and receives 201 rainy days on the 1 mm (0.04 inches) threshold annually. Ashibetsu enjoys an average of 2881 hours of sunshine throughout the year, and daylight varies from 8 hours 59 minutes to 15 hours 20 minutes per day.

Monthly average temperatures in Ashibetsu, Japan

The warmest months in Ashibetsu are July, August and September, with daily mean temperatures ranging from 16 to 20 °C (61 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -5 °C (18 - 23 °F) throughout the day. On average each year, Ashibetsu experiences 18 days above 25 °C (77.0 °F) and 145 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ashibetsu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum3°C
(39°F)		7°C
(44°F)		14°C
(57°F)		21°C
(70°F)		31°C
(88°F)		27°C
(81°F)		30°C
(87°F)		31°C
(89°F)		29°C
(84°F)		23°C
(73°F)		15°C
(60°F)		12°C
(54°F)
Mean maximum2°C
(35°F)		4°C
(39°F)		10°C
(50°F)		18°C
(65°F)		25°C
(77°F)		23°C
(74°F)		29°C
(84°F)		29°C
(85°F)		26°C
(79°F)		20°C
(68°F)		14°C
(58°F)		7°C
(45°F)
Average high-4°C
(24°F)		-3°C
(27°F)		3°C
(37°F)		10°C
(49°F)		16°C
(61°F)		19°C
(66°F)		24°C
(75°F)		23°C
(74°F)		20°C
(69°F)		14°C
(57°F)		6°C
(43°F)		-2°C
(29°F)
Daily mean-8°C
(18°F)		-7°C
(20°F)		-1°C
(31°F)		5°C
(41°F)		12°C
(54°F)		15°C
(60°F)		20°C
(68°F)		20°C
(68°F)		16°C
(61°F)		9°C
(49°F)		2°C
(36°F)		-5°C
(23°F)
Average low-12°C
(10°F)		-10°C
(14°F)		-5°C
(23°F)		0°C
(33°F)		7°C
(45°F)		11°C
(53°F)		17°C
(62°F)		16°C
(62°F)		11°C
(53°F)		5°C
(41°F)		-1°C
(30°F)		-9°C
(16°F)
Mean minimum-21°C
(-5°F)		-18°C
(0°F)		-13°C
(9°F)		-5°C
(23°F)		2°C
(35°F)		6°C
(43°F)		13°C
(55°F)		10°C
(50°F)		5°C
(40°F)		-2°C
(28°F)		-9°C
(16°F)		-17°C
(1°F)
Minimum-23°C
(-8°F)		-22°C
(-7°F)		-15°C
(5°F)		-7°C
(19°F)		1°C
(33°F)		4°C
(39°F)		9°C
(48°F)		9°C
(48°F)		2°C
(36°F)		-4°C
(24°F)		-13°C
(9°F)		-20°C
(-3°F)

Compare climate in Ashibetsu with other places

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

Monthly average precipitation in Ashibetsu, Japan

Ashibetsu usually has the most precipitation in August, October and November, with an average of 18 rainy days and 160 mm (6.3 inches) of precipitation per month. The driest months in Ashibetsu are January, February and April. On average, 74 mm (2.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ashibetsu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)61 (2.4)82 (3.2)92 (3.6)79 (3.1)104 (4.1)106 (4.2)116 (4.6)185 (7.3)114 (4.5)149 (5.9)145 (5.7)111 (4.4)
Average precipitation days (≥ 1 mm)162015141413131714162326

Monthly sunshine hours in Ashibetsu, Japan

The sunniest months in Ashibetsu are May, June and July, when the sun shines an average of 9 hours 36 minutes a day. Least sunny months in Ashibetsu: January, November and December receive an average of 5 hours 35 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ashibetsu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours148194246277295284304275259229182182
Mean daily daylight hours9h 20m10h 28m11h 56m13h 25m14h 42m15h 20m15h 1m13h 54m12h 28m10h 59m9h 40m8h 59m

Solar UV radiation in Ashibetsu, Japan

Ashibetsu experiences the highest level of ultraviolet (UV) radiation in May, July 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 Ashibetsu UV Index data.

Average daily maximum UV levels by month for Ashibetsu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)23679910108532