ClimateForecastNovemberDecember >>

Iriomote Climate by Month

Temperatures in Iriomote 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 in depth to provide you with a complete overview.

Average day and 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 averages reaching 19°C in January.

The mean minimum and maximum temperatures throughout the year

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

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.

Monthly hours of sunshine

Daily hours of sunshine

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:
  • Which is the warmest month in Iriomote?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Iriomote?
    The coldest month is January with an average maximum temperature of 22°C.
  • Which is the wettest month in Iriomote?
    August tops the wettest month list with 245 mm of rainfall.
  • Which is the driest month in Iriomote?
    February is the driest month with 136 mm of precipitation.
  • Which is the sunniest month in Iriomote?
    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.

    Forecast for Iriomote

    Fri   Nov 22
    24°C | 20°C
    NE 36 km/h
    0.4 mm
    overcast and  chance of slight rain

    overcast and chance of slight rain

    Sat   Nov 23
    23°C | 21°C
    NE 32 km/h
    0.4 mm
    broken clouds and small chance of slight rain

    broken clouds and small chance of slight rain

    Sun   Nov 24
    24°C | 20°C
    NE 25 km/h
    almost clear and no rain

    almost clear and no rain