Iriomote, Japan - Weather and Climate
Temperatures in Iriomote, Iriomote Island, Japan, experience a moderate degree of variance through the seasons.
Days can be very warm, while the cooler months tend
to be warm.
It also has a relatively rainy climate with high levels of precipitation.
Let’s explore the climate details to provide you with a complete overview.
Average maximum day and minimum night temperature
The climate in Iriomote experiences moderate temperature changes, with mild shifts between seasons. On average, daytime temperatures range from a very warm 30°C in July to a comfortable 22°C in January.
Nighttime temperatures can drop, with average lows reaching 19°C in January.Check out our detailed temperature page for more information.
Temperature ranges by month
Precipitation and rainy days
Iriomote has a notably wet climate with abundant precipitation, recording 2042 mm of rainfall per year. The amount of precipitation varies moderately throughout the year. The wettest month, August, sees around 245 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, February, still receives a respectable 136 mm of rainfall.
The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
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
Average humidity
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
Forecast for Iriomote
Select a Month of Interest
Check the conditions for any month of the year.
The best time of year to visit Iriomote in Japan
During the months of January, February, March, April, November and December you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
July has an average maximum temperature of 30°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 22°C.
August tops the wettest month list with 245 mm of rainfall.
February is the driest month with 136 mm of precipitation.
July is the sunniest month with an average of 258 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
