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Monthly climate in Otaki, Nagano, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Otaki features a humid continental climate (Dfb).Temperatures typically range between -2 °C (29 °F) and 23 °C (74 °F) through the year, but rarely can drop to -18 °C (0 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 2585 mm (101.8 inches) and receives 182 rainy days on the 1 mm (0.04 inches) threshold annually.Otaki enjoys an average of 2970 hours of sunshine throughout the year, and daylight varies from 9 hours 45 minutes to 14 hours 31 minutes per day.

Monthly average temperatures in Otaki, Nagano, Japan §

The warmest months in Otaki are July, August and September, with daily mean temperatures ranging from 19 to 23 °C (67 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 2 °C (29 - 35 °F) throughout the day. On average each year, Otaki experiences 49 days above 25 °C (77.0 °F) and 98 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Otaki, Nagano, 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 11°C
(51°F)		 14°C
(58°F)		 19°C
(66°F)		 25°C
(77°F)		 28°C
(82°F)		 28°C
(82°F)		 34°C
(94°F)		 34°C
(93°F)		 31°C
(89°F)		 26°C
(80°F)		 18°C
(65°F)		 15°C
(60°F)
Mean maximum 8°C
(47°F)		 10°C
(51°F)		 17°C
(62°F)		 21°C
(70°F)		 26°C
(79°F)		 25°C
(77°F)		 30°C
(87°F)		 32°C
(90°F)		 28°C
(83°F)		 25°C
(78°F)		 18°C
(64°F)		 12°C
(54°F)
Average high 2°C
(37°F)		 4°C
(39°F)		 9°C
(49°F)		 14°C
(57°F)		 19°C
(67°F)		 22°C
(72°F)		 25°C
(78°F)		 28°C
(82°F)		 23°C
(75°F)		 18°C
(65°F)		 12°C
(54°F)		 6°C
(42°F)
Daily mean -2°C
(29°F)		 -1°C
(30°F)		 5°C
(40°F)		 9°C
(48°F)		 14°C
(58°F)		 18°C
(64°F)		 22°C
(71°F)		 23°C
(74°F)		 19°C
(67°F)		 14°C
(57°F)		 7°C
(45°F)		 2°C
(35°F)
Average low -6°C
(22°F)		 -6°C
(22°F)		 0°C
(32°F)		 4°C
(39°F)		 9°C
(49°F)		 14°C
(57°F)		 19°C
(66°F)		 20°C
(68°F)		 16°C
(61°F)		 10°C
(50°F)		 3°C
(37°F)		 -2°C
(29°F)
Mean minimum -13°C
(9°F)		 -13°C
(10°F)		 -5°C
(23°F)		 -3°C
(27°F)		 1°C
(34°F)		 8°C
(46°F)		 16°C
(60°F)		 16°C
(60°F)		 10°C
(50°F)		 3°C
(37°F)		 -2°C
(28°F)		 -7°C
(20°F)
Minimum -18°C
(1°F)		 -18°C
(-0°F)		 -7°C
(20°F)		 -8°C
(18°F)		 -1°C
(30°F)		 6°C
(42°F)		 14°C
(58°F)		 13°C
(56°F)		 5°C
(42°F)		 2°C
(36°F)		 -6°C
(22°F)		 -9°C
(16°F)

Compare climate in Otaki with other places

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

Monthly average precipitation in Otaki, Nagano, Japan §

Otaki usually has the most precipitation in July, August and September, with an average of 20 rainy days and 357 mm (14.1 inches) of precipitation per month.The driest months in Otaki are January, November and December. On average, 97 mm (3.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Otaki, Nagano, 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) 95 (3.7) 109 (4.3) 176 (6.9) 222 (8.8) 228 (9.0) 239 (9.4) 516 (20.3) 295 (11.6) 261 (10.3) 246 (9.7) 91 (3.6) 107 (4.2)
Average precipitation days (≥ 1 mm) 14 12 14 13 14 15 25 20 17 15 9 14

Monthly sunshine hours in Otaki, Nagano, Japan §

The sunniest months in Otaki are April, May and August, when the sun shines an average of 9 hours 20 minutes a day.Least sunny months in Otaki: January, October and December receive an average of 6 hours 47 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Otaki, Nagano, 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 180 234 266 279 290 263 237 289 239 229 237 222
Mean daily daylight hours 10h 1m 10h 52m 11h 57m 13h 5m 14h 3m 14h 31m 14h 17m 13h 27m 12h 22m 11h 15m 10h 16m 9h 45m

Solar UV radiation in Otaki, Nagano, Japan §

Otaki experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure.January, November 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 Otaki UV Index data.

Average daily maximum UV levels by month for Otaki, Nagano, 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) 4 6 9 10 11 11 12 12 10 7 5 4