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Monthly climate in Otawara, Tochigi, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Otawara features a humid subtropical climate (Cfa).Temperatures typically range between 3 °C (38 °F) and 26 °C (80 °F) through the year, but rarely can drop to -12 °C (11 °F) or can rise to as high as 35 °C (96 °F).The average annual precipitation amounts to about 1589 mm (62.5 inches) and receives 155 rainy days on the 1 mm (0.04 inches) threshold annually.Otawara enjoys an average of 2876 hours of sunshine throughout the year, and daylight varies from 9 hours 40 minutes to 14 hours 37 minutes per day.

Monthly average temperatures in Otawara, Tochigi, Japan §

The warmest months in Otawara are July, August and September, with daily mean temperatures ranging from 22 to 26 °C (72 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 5 °C (38 - 42 °F) throughout the day. On average each year, Otawara experiences 86 days above 25 °C (77.0 °F) and 52 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Otawara, Tochigi, 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 15°C
(60°F)		 20°C
(69°F)		 23°C
(75°F)		 28°C
(83°F)		 33°C
(91°F)		 33°C
(91°F)		 35°C
(96°F)		 35°C
(96°F)		 33°C
(92°F)		 30°C
(86°F)		 23°C
(73°F)		 18°C
(65°F)
Mean maximum 14°C
(57°F)		 17°C
(62°F)		 21°C
(70°F)		 25°C
(78°F)		 30°C
(86°F)		 29°C
(84°F)		 33°C
(92°F)		 34°C
(94°F)		 31°C
(89°F)		 28°C
(82°F)		 22°C
(71°F)		 16°C
(61°F)
Average high 8°C
(47°F)		 9°C
(49°F)		 13°C
(56°F)		 18°C
(64°F)		 23°C
(73°F)		 25°C
(77°F)		 28°C
(83°F)		 30°C
(87°F)		 26°C
(79°F)		 20°C
(69°F)		 16°C
(61°F)		 10°C
(51°F)
Daily mean 3°C
(38°F)		 4°C
(40°F)		 8°C
(47°F)		 12°C
(55°F)		 18°C
(64°F)		 21°C
(70°F)		 25°C
(76°F)		 26°C
(80°F)		 22°C
(72°F)		 16°C
(62°F)		 11°C
(52°F)		 5°C
(42°F)
Average low -1°C
(31°F)		 -0°C
(32°F)		 3°C
(37°F)		 7°C
(45°F)		 13°C
(55°F)		 17°C
(63°F)		 21°C
(71°F)		 23°C
(73°F)		 19°C
(66°F)		 13°C
(55°F)		 6°C
(43°F)		 1°C
(34°F)
Mean minimum -5°C
(24°F)		 -3°C
(26°F)		 -3°C
(27°F)		 0°C
(33°F)		 5°C
(41°F)		 13°C
(55°F)		 18°C
(64°F)		 18°C
(64°F)		 12°C
(54°F)		 6°C
(43°F)		 -0°C
(31°F)		 -3°C
(27°F)
Minimum -12°C
(11°F)		 -5°C
(23°F)		 -4°C
(25°F)		 -1°C
(30°F)		 3°C
(38°F)		 10°C
(51°F)		 17°C
(62°F)		 14°C
(57°F)		 10°C
(51°F)		 3°C
(38°F)		 -2°C
(29°F)		 -4°C
(26°F)

Compare climate in Otawara with other places

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

Monthly average precipitation in Otawara, Tochigi, Japan §

Otawara usually has the most precipitation in July, August and October, with an average of 19 rainy days and 223 mm (8.8 inches) of precipitation per month.The driest months in Otawara are January, February and December. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Otawara, Tochigi, 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) 40 (1.6) 42 (1.6) 134 (5.3) 127 (5.0) 142 (5.6) 148 (5.8) 255 (10.0) 189 (7.5) 176 (6.9) 225 (8.9) 56 (2.2) 53 (2.1)
Average precipitation days (≥ 1 mm) 7 7 11 12 15 15 23 20 18 14 6 7

Monthly sunshine hours in Otawara, Tochigi, Japan §

The sunniest months in Otawara are April, May and August, when the sun shines an average of 8 hours 54 minutes a day.Least sunny months in Otawara: January, October and December receive an average of 6 hours 34 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Otawara, Tochigi, 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 183 231 263 274 278 262 232 267 226 205 228 223
Mean daily daylight hours 9h 56m 10h 49m 11h 57m 13h 8m 14h 7m 14h 37m 14h 22m 13h 30m 12h 23m 11h 13m 10h 12m 9h 40m

Solar UV radiation in Otawara, Tochigi, Japan §

Otawara experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure.January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Otawara UV Index data.

Average daily maximum UV levels by month for Otawara, Tochigi, 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) 3 5 7 9 10 11 11 11 9 7 5 3