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Monthly climate in Innoshima, Hiroshima, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Innoshima features a humid subtropical climate (Cfa).Temperatures typically range between 7 °C (45 °F) and 29 °C (84 °F) through the year, but rarely can drop to -1 °C (31 °F) or can rise to as high as 33 °C (92 °F).The average annual precipitation amounts to about 1525 mm (60.0 inches) and receives 121 rainy days on the 1 mm (0.04 inches) threshold annually.Innoshima enjoys an average of 3129 hours of sunshine throughout the year, and daylight varies from 9 hours 53 minutes to 14 hours 23 minutes per day.

Monthly average temperatures in Innoshima, Hiroshima, Japan §

The warmest months in Innoshima are July, August and September, with daily mean temperatures ranging from 25 to 29 °C (78 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 10 °C (45 - 50 °F) throughout the day. On average each year, Innoshima experiences 83 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Innoshima, Hiroshima, 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)		 17°C
(62°F)		 18°C
(64°F)		 23°C
(73°F)		 27°C
(80°F)		 28°C
(82°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(91°F)		 29°C
(85°F)		 22°C
(72°F)		 20°C
(68°F)
Mean maximum 14°C
(57°F)		 14°C
(57°F)		 17°C
(63°F)		 21°C
(69°F)		 25°C
(77°F)		 27°C
(81°F)		 31°C
(88°F)		 33°C
(91°F)		 31°C
(88°F)		 27°C
(82°F)		 21°C
(70°F)		 17°C
(63°F)
Average high 9°C
(49°F)		 10°C
(50°F)		 13°C
(56°F)		 17°C
(62°F)		 21°C
(70°F)		 24°C
(76°F)		 28°C
(83°F)		 30°C
(87°F)		 27°C
(81°F)		 22°C
(72°F)		 17°C
(63°F)		 12°C
(53°F)
Daily mean 7°C
(45°F)		 7°C
(45°F)		 11°C
(51°F)		 14°C
(58°F)		 19°C
(66°F)		 22°C
(73°F)		 26°C
(80°F)		 29°C
(84°F)		 25°C
(78°F)		 20°C
(69°F)		 15°C
(59°F)		 10°C
(50°F)
Average low 5°C
(42°F)		 5°C
(41°F)		 8°C
(47°F)		 12°C
(53°F)		 17°C
(62°F)		 20°C
(69°F)		 25°C
(77°F)		 27°C
(80°F)		 23°C
(74°F)		 18°C
(65°F)		 12°C
(54°F)		 7°C
(46°F)
Mean minimum 2°C
(35°F)		 2°C
(35°F)		 4°C
(39°F)		 7°C
(44°F)		 12°C
(54°F)		 18°C
(64°F)		 22°C
(72°F)		 24°C
(75°F)		 19°C
(66°F)		 13°C
(56°F)		 7°C
(46°F)		 3°C
(38°F)
Minimum -1°C
(31°F)		 -0°C
(32°F)		 2°C
(37°F)		 6°C
(43°F)		 11°C
(53°F)		 16°C
(62°F)		 21°C
(70°F)		 22°C
(72°F)		 18°C
(65°F)		 12°C
(53°F)		 7°C
(45°F)		 2°C
(36°F)

Compare climate in Innoshima with other places

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

Monthly average precipitation in Innoshima, Hiroshima, Japan §

Innoshima usually has the most precipitation in July, September and October, with an average of 12 rainy days and 221 mm (8.7 inches) of precipitation per month.The driest months in Innoshima are January, November and December. On average, 56 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Innoshima, Hiroshima, 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) 54 (2.1) 67 (2.6) 105 (4.1) 122 (4.8) 116 (4.6) 151 (5.9) 285 (11.2) 133 (5.2) 177 (7.0) 201 (7.9) 50 (2.0) 64 (2.5)
Average precipitation days (≥ 1 mm) 9 9 10 8 9 12 15 8 12 11 7 11

Monthly sunshine hours in Innoshima, Hiroshima, Japan §

The sunniest months in Innoshima are May, June and August, when the sun shines an average of 9 hours 51 minutes a day.Least sunny months in Innoshima: January, February and December receive an average of 6 hours 59 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Innoshima, Hiroshima, 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 184 231 267 284 304 292 284 309 260 250 238 221
Mean daily daylight hours 10h 7m 10h 56m 11h 58m 13h 2m 13h 56m 14h 23m 14h 9m 13h 22m 12h 21m 11h 17m 10h 22m 9h 53m

Solar UV radiation in Innoshima, Hiroshima, Japan §

Innoshima 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, 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 Innoshima UV Index data.

Average daily maximum UV levels by month for Innoshima, Hiroshima, 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 5 8 10 11 11 12 12 10 7 6 4