Iriomote Island Weather & Climate: Japan

Climate by month across Iriomote Island, Japan, average temperatures, rainfall and the best time to visit.

Climate overview of Iriomote Island

Iriomote Island in Japan sees its peak temperatures in July (30°C (86°F)) and its coolest in January (22°C (72°F)). For a full breakdown of what to expect throughout the year, we've put together a climate overview based on data from Iriomote, the region's most visited city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.

The weather in Iriomote Island during January, February, March, April, November and December is comfortably warm, with average temperatures ranging from 22°C (72°F) to 26°C (79°F).

July and August are generally the hottest months of the year.

Precipitation in Iriomote Island varies considerably throughout the year. The wettest conditions occur in August with 244 mm (9.6 in) of rain, while February stays relatively dry with 136 mm (5.4 in). The region experiences its rainy season during August and September, when monthly rainfall can range from 240 mm (9.4 in) to 244 mm (9.6 in).

For those seeking sunshine, July usually has the brightest skies, making it an excellent time for exploring the region.

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Iriomote Taketomi
Day temperature (°C)
Monthly rainfall (mm)
Monthly sunshine (hours)

Climate map of Iriomote Island

Average daily temperature, monthly rainfall & sunshine hours across cities.

Avg day temp (°C)
32°

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Average daytime and nighttime temperatures, yearly rainfall and sunshine.

Iriomote 22°C (72°F) 30°C (86°F) 19°C (66°F) 28°C (82°F) 2042 mm (80 in) 1,724 hours
Taketomi 22°C (72°F) 30°C (86°F) 19°C (66°F) 28°C (82°F) 2045 mm (81 in) 1,724 hours

Places in Iriomote Island, Japan

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Bucket list

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