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Monthly climate in Nakatonbetsu, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Nakatonbetsu features a humid continental climate (Dfb). Temperatures typically range between -6 °C (22 °F) and 19 °C (67 °F) through the year, but rarely can drop to -20 °C (-3 °F) or can rise to as high as 29 °C (85 °F). The average annual precipitation amounts to about 1121 mm (44.1 inches) and receives 181 rainy days on the 1 mm (0.04 inches) threshold annually. Nakatonbetsu enjoys an average of 2848 hours of sunshine throughout the year, and daylight varies from 8 hours 49 minutes to 15 hours 32 minutes per day.

Monthly average temperatures in Nakatonbetsu, Japan

The warmest months in Nakatonbetsu are July, August and September, with daily mean temperatures ranging from 17 to 19 °C (62 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -6 to -3 °C (22 - 27 °F) throughout the day. On average each year, Nakatonbetsu experiences 6 days above 25 °C (77.0 °F) and 127 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Nakatonbetsu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum4°C
(39°F)		5°C
(42°F)		13°C
(56°F)		18°C
(65°F)		25°C
(77°F)		25°C
(77°F)		29°C
(85°F)		29°C
(85°F)		28°C
(82°F)		21°C
(71°F)		15°C
(60°F)		10°C
(51°F)
Mean maximum2°C
(36°F)		4°C
(39°F)		9°C
(49°F)		15°C
(59°F)		21°C
(70°F)		20°C
(69°F)		26°C
(80°F)		26°C
(80°F)		25°C
(77°F)		20°C
(68°F)		14°C
(57°F)		7°C
(45°F)
Average high-3°C
(26°F)		-3°C
(27°F)		2°C
(36°F)		8°C
(46°F)		13°C
(56°F)		16°C
(61°F)		21°C
(70°F)		22°C
(71°F)		20°C
(68°F)		14°C
(57°F)		6°C
(44°F)		-1°C
(31°F)
Daily mean-6°C
(22°F)		-6°C
(22°F)		-0°C
(31°F)		5°C
(41°F)		10°C
(51°F)		13°C
(56°F)		18°C
(65°F)		19°C
(67°F)		17°C
(62°F)		11°C
(52°F)		4°C
(40°F)		-3°C
(27°F)
Average low-9°C
(16°F)		-9°C
(17°F)		-3°C
(26°F)		2°C
(35°F)		7°C
(45°F)		11°C
(51°F)		16°C
(61°F)		17°C
(62°F)		14°C
(57°F)		8°C
(46°F)		2°C
(35°F)		-5°C
(23°F)
Mean minimum-15°C
(6°F)		-16°C
(4°F)		-9°C
(16°F)		-5°C
(24°F)		1°C
(34°F)		6°C
(43°F)		11°C
(51°F)		12°C
(54°F)		9°C
(48°F)		3°C
(37°F)		-4°C
(24°F)		-11°C
(12°F)
Minimum-16°C
(4°F)		-20°C
(-3°F)		-12°C
(11°F)		-9°C
(16°F)		-0°C
(32°F)		3°C
(38°F)		8°C
(47°F)		10°C
(50°F)		7°C
(45°F)		1°C
(34°F)		-7°C
(19°F)		-14°C
(6°F)

Compare climate in Nakatonbetsu with other places

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

Monthly average precipitation in Nakatonbetsu, Japan

Nakatonbetsu usually has the most precipitation in August, October and November, with an average of 18 rainy days and 135 mm (5.3 inches) of precipitation per month. The driest months in Nakatonbetsu are January, February and April. On average, 64 mm (2.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Nakatonbetsu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)65 (2.6)65 (2.5)78 (3.1)63 (2.5)87 (3.4)89 (3.5)95 (3.8)152 (6.0)78 (3.1)126 (5.0)126 (5.0)96 (3.8)
Average precipitation days (≥ 1 mm)16161311131391512162324

Monthly sunshine hours in Nakatonbetsu, Japan

The sunniest months in Nakatonbetsu are May, June and July, when the sun shines an average of 9 hours 49 minutes a day. Least sunny months in Nakatonbetsu: January, November and December receive an average of 4 hours 48 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Nakatonbetsu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours115181241284292285325273279241167158
Mean daily daylight hours9h 11m10h 23m11h 55m13h 29m14h 50m15h 32m15h 11m14h 0m12h 29m10h 56m9h 32m8h 49m

Solar UV radiation in Nakatonbetsu, Japan

Nakatonbetsu experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 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 Nakatonbetsu UV Index data.

Average daily maximum UV levels by month for Nakatonbetsu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235689987532