Local Column

COLUMN

The weather in Iriomotejima in September, including what to wear and 5 recommended activities! Thorough explanation by local staff!

2025-06-03 04:13

Hello everyone!

 

One of the largest activity stores in Iriomote Island
Iriomotejima ADVENTURE PiPi!

 

September is the time of year when the heat gradually begins to abate on the mainland.

 

However, September in Iriomote Island isThe lingering summer heat is still continuing.

 

And in September.Fewer touristsIt is also a time when daily life on the island returns.

 

This article introduces September in Iriomote Island!

 

目次

Attractions of Iriomote Island in September

バラス島 西表島 

I want to feel Iriomote Island in midsummer, though,I don't want to be crowded.If so, September is recommended.

 

With the summer vacation season over in July and August, tourists are calming down and airline tickets are becoming cheaper.

 

Although temperatures and sea water temperatures are slightly lower than in August,Summer is still in full swing.

 

If you want to avoid the crowds and enjoy the mountains and sea of Iriomote Island in summer, September is the best time to visit!

 

Climate of Iriomote Island in September

ナダラ川 トレッキング

The climate of Iriomote Island in September isNot much different from August.

 

Compared to the mainland, Iriomote Island is still in the height of summer.

 

From here.Climate of Iriomote Island in SeptemberThis section will provide a specific explanation of the following

 

Climate of Iriomote Island in September
(1) Wind direction and speed

西表島の大見謝川で遊ぶ

The hot season in summer is compared to winter, when the winds are strong from the north.The wind is not that strong.

 

There is often a relaxing and pleasant southerly breeze.

 

However, when typhoons hit, their winds are incomparable to those on the mainland.

西表島 クーラ川 SUP

Iriomote Island has no high mountains, so the strong winds that come across from the seaIn all its strength.It is an island to pass through.

 

Never go to the beach or high ground during a typhoon.

 

Therefore, unless a typhoon comes, you will be able to enjoy Iriomote Island sightseeing while feeling the pleasant southern wind.

Average wind speed in Iriomote Island in September

Iriomote Island: 4.1m/s

Tokyo: 2.8 m/s

 

Climate of Iriomote Island in September
(2) Temperature

西表島のマングローブ

Compared to August, the average temperature in September wasIt has only dropped one degree.

 

The weather is still summer with an average temperature of 27.3 degrees Celsius.

 

You can also swim comfortably in the sea,Marine Activitiescan also be fully enjoyed.

西表島 由布島 水牛車

Because the temperature will be almost the same as in August,Midsummer measures are essential.will be.

 

TokyoLet's also compare it with the temperature of the

Average temperature of Iriomote Island in September
average temperature maximum temperature minimum temperature

Iriomote Island (Okinawa)

24.4°C 30.1°C 24.8°C

Tokyo

17.2°C 21.5°C 13.8°C

 

Climate of Iriomote Island in September
(c) Precipitation

月が浜

Summer.characteristic of subtropical climatesSqualls of squalls will increase in number.

 

In addition, more typhoons are expected to arrive, resulting in more precipitation.

 

Typhoons and squalls can be checked out in advance,Avoidance is possibleIt is.

西表島 キャニオニング

In the summer, it is humid, and if the place is a jungle with no wind, it will be damp.Very hot.I can feel it.

 

If you want to visit Iriomote Island in September,Be sure to bring rain gearLet's do the following.

Rainfall in Iriomote Island in September
average
amount of rainfall
average
Relative humidity

Iriomote Island (Okinawa)

178.8mm 80%.

Tokyo

238.7mm 81%.

 

Climate of Iriomote Island in September
Sunshine hours

西表島バラス島にて、女の子

The hours of sunlight in Iriomote Island in September are slightly shorter than in July and August.

 

However, there are still longer hours of sunlight than in other seasons.

 

Therefore,Sufficient ActivityYou can also enjoy the

Sunshine hours in Iriomote Island in September

Iriomote Island: 198.7h

Tokyo: 134.5h

 

Iriomote Island Clothing in September

西表島 バラス島 写真

September still has temperatures above 25 degrees Celsius,It is a hot time of year.

 

During the daytime, visitors can wear short sleeves, shorts, and sandals.

 

Ultraviolet rays areFour times the size of Honshu.It is also said that

 

Remember to wear sunscreen, a hat, and sunglasses.

西表島 港

As for clothing, Iriomote Island in September is hot and humid,Highly breathableis recommended.

 

It is a good idea to have long-sleeved items that can be woven in case the temperature drops.

 

A raincoat is more useful than an umbrella for ease of movement.

 

Not clothing, but a smartphone or camera.Waterproofing measures should also be provided.is recommended.

Examples of attire for men and women

femaleOne-piece, short-sleeved, shorts, woven, raincoat

masculine genderShort sleeves, short pants, swimsuits, woven clothing, raincoat

 

Crowded situation in Iriomote Island in September

西表島 上原港

September is the end of the summer vacation season, and compared to July and AugustNot crowded.

 

Many people seem to avoid it because of the typhoon season.

 

However, typhoons should be surveyed in advance,Avoidance is possibleIt is.

西表島 大原港

Check the weather information, it's no different than the best season.Sightseeing with a high degree of freedomIt can be said that this is the time to enjoy the

 

Iriomote Island in September, which has fewer people than in midsummer, is not a tourist destination.The original expression of the islandThis may be the perfect season to see the

 

Recommendations for Iriomote Island in September
Five tourist attractions!

バラス島

Iriomote Island is still warm enough to swim in a bathing suit.

 

Iriomote Island is rich in nature.Many tourist attractionsThere are

 

From here, we will introduce the tourist attractions of Iriomote Island.

 

Iriomote Island in September.
Recommended Sightseeing Spots
(1) Yubu Island

西表島 水牛車 由布島観光

From Iriomote IslandRide on a buffalo cartYubu Island, where you can

 

It is a very small island, about 2 km in circumference, and can be walked on at low tide.

 

Walking is fine, but why not take a buffalo cart and relax while listening to the guide's sanshin (Okinawan traditional three-stringed instrument)?

 

Yubu Island also has an orchard, a zoo, and restaurants,Enjoy it with your family.You can

 

Iriomote Island in September.
Recommended Sightseeing Spots
(2) Omija Waterfall

キャニオニング

Omija Falls is located about 15 minutes by car from Uehara Port.

 

Splash canyoning is available at Omija Falls and is safe for beginners!

 

Dive into natural waterslides and waterfalls,You can do activities using the nature of Iriomote!

 

Iriomote Island in September.
Recommended Sightseeing Spots
(3) Barras Island

西表島 バラス

Barasu Island is located in the northern part of Iriomote Island.An island made of coral fragmentsIt is.

 

It is also called Miracle Island because it appears only when the tide is low.

 

We can only go there by boat,To go, you must join a tour.will be!

 

Iriomote Island in September.
Recommended Sightseeing Spots
(4) Waterfalls

水落の滝

Waterfalls.can only be reached by boat or canoe from Shirahama Port.Unexplored Funauki AreaThe waterfall is located at

 

It is located at the end of the river, where you can cross Funauki Bay by canoe from Shirahama and enjoy the view of the mangroves!

 

The way the water falls directly into the waterfall basin is fascinating,Canoeing behind the falls or plunging toward the fallsYou can also do this!

 

Iriomote Island in September.
Recommended Sightseeing Spots
(5) Starry sky

ナイトツアー

Iriomote Island has few street lights and clean air,The island is ideal for stargazing.

 

Iriomote-Ishigaki National Park was established in April 2018.Japan's first "starry sky protected area" recognizedI received a

 

Iriomote Island is located at 24 degrees north latitude,An island where as many as 84 of the 88 constellations can be observedIt is.

 

Visit the natural planetarium of Iriomote Island!

 

Recommendations for Iriomote Island in September
5 activities!

September in Iriomote Island isIt must be midsummer.We hope that you now understand the

 

Then, in Iriomote Island in September, what kind ofActivitiesWill you be able to enjoy the

 

In this issue, we will introduce five activities that allow you to fully enjoy the nature of Iriomote Island.

 

Recommendations for Iriomote Island in September
Activities
(1) Barras Island Snorkeling

西表島 バラス

Speaking of September's recommended aquatic activities,snorkelingIt is.

 

Many coral reefs grow in clusters around Iriomote Island and are inhabited by a variety of creatures.

 

On the island of BarrasMore than 100 kinds of tropical fishare inhabited, and you will also enjoy observing the marine life.

Also, if you're lucky.Encountering sea turtlesThere are also

 

Snorkeling with sea turtles is another great experience!

 

sunny (room, etc.)It is September in Iriomote Island, but snorkeling can be fully enjoyed by wearing a rash guard and staying well hydrated.

 

Recommendations for Iriomote Island in September
Activities
(2) Mangrove SUP/Canoe Tour

カヌー

Next up is the World Heritage SUP/Canoe Tour.

 

Among the activities in Iriomote IslandHighly popular tour!

SUPツアー

It is a great way to relax at sea, feel the waves, and go on with nature surrounded by nature.It feels very mysterious.

 

Nature, just by looking at it.Great spot to get power.It is.

 

Recommendations for Iriomote Island in September
Activities
(3) World Heritage SUP/Canoe Tours &...
Barras Island Snorkeling

バラス島

This plan includes the two packages introduced earlier: SUP/canoeing at the World Heritage Site and snorkeling at Barasu Island!

 

At Barras Island SnorkelingIf you are lucky, you may see sea turtles!



The sea around the coral-covered Barras Island is crystal clear and very beautiful.

SUP/canoeing experience at the World Heritage Site is cruising on a calm river OR ocean!

 

Iriomote Island, registered as a World Natural Heritage Site.Plan to enjoy both the ocean and the riverIt is.

 

Recommendations for Iriomote Island in September
Activities
Canyoning

西表島 キャニオニング

What is Canyoning?Canyons with elevation differencesThis activity involves trekking, swimming, canoeing, and other elements to go down the

 

You can play on a natural water slide or jump into a waterfall basin.

 

Wear a rash guard when canyoning.Take precautionary measures against sunburns.It is important to wear long pants and to keep insects away.

西表島 キャニオニング

Upper canyoning, of course.Beginners can also enjoyActivity.

 

The tour will provide you with life jackets, helmets, and other safety equipment.

 

With a guideWe will proceed at the customer's pace so that they can go at ease.

 

Recommendations for Iriomote Island in September
Activities
5⑤Starry sky & jungle night tour

ジャングルナイトツアー

The starry sky & jungle night tour on Iriomote Island, which has been selected as a World Heritage Site, is one of the tours you should definitely experience.

 

You can't see it in Honshu.Unusual creatures and plantsto see the

 

The tour with a knowledgeable guide is sure to be satisfying as you can learn about Iriomote Island in depth.

ナイトツアー

If the sky is clear, you may be able to see a star-filled sky.

 

First in JapanThe Starry Sky Reserve.The starry sky, certified as a "starry night sky," is a sight to behold!

 

If you come to Iriomote Island, please stay overnight and enjoy the night as well.

 

in the end

We introduced September in Iriomote Island.

 

September is no different than the hot season in July and August.Summer-like days continue.

 

As long as the timing of the typhoon can be avoided, the summer vacation will be over and the number of tourists will decrease,It can be said to be the hole season.

 

By all means,Check weather informationPlease visit Iriomote Island in September while you are there.

 

Thank you for reading to the end.

 

Click here to see Iriomote Island's temperature, clothing, events and activities by month.

 

We can work together in Iriomotejima PiPi.
We are looking for friends!

スタッフ募集

At PiPi, it can be short term or long term,Throughout the yearWe are looking for staff to work with!

 

From tour guides, to administrative staff, marketing personnel, sales staff, and back office personnel,Wide range of occupationsWe are actively hiring at

 

Inexperienced workers are welcome! If you are considering moving to Okinawa or taking on a new challenge, we would love to hear from you.

 

If you want to work in the activity industry or in the nature of Okinawa, PiPi is the place for you!Start a new careerWhy not?

This article was written by.
にわちゃん
young Japanese amberjack (Seriola quinqueradiata)