Iriomote Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Iriomote.
Climate overview of Iriomote
Temperatures in Iriomote, Iriomote Island, Japan, shift moderately through the seasons. The warmest month is July at 30°C (86°F), and the coolest is January at 22°C (72°F).
The city has a wet climate, receiving around 2042 mm (80 in) of rainfall per year. August is the wettest month. Sunshine peaks in July, when the city sees around 8.6 hours of sunshine per day.
Iriomote Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Iriomote — and find the best time to visit.
Monthly Temperature in Iriomote
The climate in Iriomote experiences moderate temperature changes, with mild shifts between seasons. On average, daytime temperatures range from a very warm 30°C (86°F) in July to a comfortable 22°C (72°F) in January.
Nighttime temperatures range from 28°C (82°F) in July to 19°C (66°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Iriomote
Iriomote has a notably wet climate with abundant precipitation, recording 2042 mm (80 in) of rainfall per year. The amount of precipitation varies moderately throughout the year. The wettest month, August, sees around 245 mm (9.6 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, February, still receives a respectable 136 mm (5.4 in) of rainfall. For more details, please visit our Iriomote Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Iriomote
In Iriomote, summer days are longer and more sunny, with daily sunshine hours peaking at 8.6 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Iriomote by Month
The relative humidity is high throughout the year in Iriomote.
The city experiences its highest humidity in July, reaching 83%. In January, the humidity drops to its lowest level at 73%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Iriomote
The wettest months are January, April, May, June, August, September and December, when precipitation is at its highest. Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Iriomote
What is the best time to visit Iriomote?
January, February, March, April, May, June, October, November and December typically offer the most optimal weather in Iriomote. In contrast, August tends to have less optimal conditions.
What temperatures can I expect in Iriomote?
Daytime highs range from 22°C (72°F) in January to 30°C (86°F) in July. Nighttime lows range from 19°C (66°F) to 28°C (82°F).
How much rain does Iriomote get?
Annual rainfall is around 2042 mm (80 in). August is the wettest month with 245 mm (9.6 in), while February is the driest with 136 mm (5.4 in).
How sunny is Iriomote?
Iriomote receives around 1,724 hours of sunshine per year. July is the sunniest month with 258 hours, while December is the cloudiest with just 70 hours.
Iriomote 3-Day Forecast
Iriomote 3-Day Forecast
Iriomote on the map
Iriomote is highlighted — select any city to see its climate.
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