Iriomote Island Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Iriomote Island, Japan in September.

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Iriomote Taketomi

Planning a getaway to Iriomote Island, Japan this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Iriomote Island in September

Iriomote Island, Japan is a region in Japan. September in Iriomote Island generally has warm temperatures, with heavy precipitation.

Temperatures

You can expect warm maximum daytime temperatures of around 29°C (84°F) and nighttime temperatures around 27°C (81°F) in Iriomote. The temperatures mentioned for daytime and nighttime are general averages. However there can be days that surpass these temperatures. So equip yourself with clothing that can handle the potential heat.

For a closer look at conditions across Iriomote Island, Japan, refer to the map below.

Precipitation

September is a very rainy month with an average rainfall of around 241 mm (9.5 in) in Iriomote.

Average sunshine

Sunshine is fairly consistent across many areas. Iriomote receives about 180 hours of sunlight in September, providing a good balance between sunny spells and cloud cover. If you're after more sunshine hours, take a look at our weather planner for other sun-rich destinations worldwide.

Explore Iriomote Island by month

Pick a month to see the average temperature, rainfall and sunshine in Iriomote Island - and find the best time to visit. (based on Iriomote)

January22°C (72°F) February22°C (72°F) March24°C (75°F) April25°C (77°F) May28°C (82°F) June29°C (84°F) This monthJuly30°C (86°F) August30°C (86°F) September29°C (84°F) October28°C (82°F) November26°C (79°F) December24°C (75°F)
Best Time to Visit Iriomote Island →

Best Places to Visit in Iriomote Island in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Iriomote Island.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Iriomote Island

What is the weather like in September for some of the most popular destinations in Iriomote Island, Japan?

Temperature range in Iriomote Island (September)

Precipitation variation in Iriomote Island (September)

Iriomote

In September Iriomote generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 27°C (81°F) and heavy monthly rainfall. So on average the conditions are mixed that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
29°C (84°F)
28°C (82°F)
Min temperature
28°C (82°F)
27°C (81°F)
25°C (77°F)
Monthly sun hours
217 hours
180 hours
138 hours
Monthly rainfall
245 mm (9.6 in)
241 mm (9.5 in)
148 mm (5.8 in)
Monthly rainy days
21 days
21 days
21 days
Weather conditions
less favorable
mixed
very good
Climate in Iriomote →

Taketomi

In September Taketomi generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 27°C (81°F) and heavy monthly rainfall. So on average the conditions are mixed that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
29°C (84°F)
28°C (82°F)
Min temperature
28°C (82°F)
27°C (81°F)
25°C (77°F)
Monthly sun hours
217 hours
180 hours
138 hours
Monthly rainfall
244 mm (9.6 in)
240 mm (9.4 in)
148 mm (5.8 in)
Monthly rainy days
21 days
21 days
21 days
Weather conditions
less favorable
mixed
very good
Climate in Taketomi →

Is your destination not in the list? Have a look at all destinations in Iriomote Island, in Japan.

Popular cities in September

Day & night temperatures, rainfall and average weather in Iriomote Island in September.

City Weather Day temp Night temp Rainfall
Iriomote 29°C (84°F) 27°C (81°F) 241 mm (9.5 in)
Taketomi 29°C (84°F) 27°C (81°F) 240 mm (9.4 in)

Iriomote Island weather in September: frequently asked questions

What is the weather like in Iriomote Island, Japan in September?

Expect mixed weather across Iriomote Island, Japan in September. The popular destination of Iriomote averages 29°C (84°F) by day and 27°C (81°F) at night during this month.

What is the average temperature in Iriomote Island, Japan in September?

Daytime temperatures in Iriomote peak at roughly 29°C (84°F) in September, dropping to about 27°C (81°F) overnight.

Does Iriomote Island, Japan get a lot of rain in September?

Rainfall in Iriomote Island, Japan peaks during September. Iriomote averages roughly 241 mm (9.5 in), so frequent and sometimes heavy showers are the norm.

Is September a Good Time to Visit Iriomote Island, Japan?

In our opinion, September may not be the ideal time to visit Iriomote Island, Japan due to the typically mixed weather in Iriomote.

Generally speaking, the best visiting conditions can be found in January, February, March, April, May, June, October, November and December offering mostly very good weather in Iriomote. On the other hand, the month of August tends to have less favorable weather conditions.

Interested in more climate information?

We have much more information about the climate in Iriomote Island.

Weather and climate has detailed information for every country in the world. Are you going to Japan? Get detailed historical weather averages for many cities in Japan.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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