What is the best season in Iriomote Island? Introducing merits and demerits of each season!
①海を楽しむなら梅雨明け直後の6月下旬〜7月上旬。晴天が続きやすく台風もまだ少ない
②ジャングルや観光なら10〜11月。暑さと台風が落ち着き、観光客も少ない
③梅雨は5月上旬〜6月下旬、台風は8〜9月に多い。冬は北風でフェリーの欠航に注意
Let's go to Iriomote Island, a World Natural Heritage Site!
When is the best season?

Iriomote Island is called the "Galapagos of the Orient.
一年中温暖な気候のイメージですが、梅雨や台風、混雑する時期もあるため、せっかくなら一番旅行を楽しめる時期に行きたいですよね!
そこで今回は、西表島のベストシーズンを「目的別」「月別」にわかりやすく整理し、季節ごとの気候やメリット・デメリットをご紹介。
Whether it's your first time or you want to go back,Let's travel during the best season to feel the charm of Iriomote Island at its best!
◆Iriomote Island's best season for those who want to know the best season.
◆Iriomote Island, looking for recommended activities in Iriomote Island
◆Those who want to compare merits and demerits of each season in Iriomote Island.
Iriomotejima Island / 1 day】To the top of Pinaisara Falls and the waterfall basin! Special tour with limited number of participants☆Mangrove canoeing & trekking course♪The view from the top of the waterfall is sure to impress you♪ Lunch included (No.12)開始時間9:00-16:00所要時間Approx. 6.5 hours14,000 yen
Iriomotejima Island/1 day] The early bird gets the worm on this very popular set☆Mangrove Canoeing to Pinaisara Falls & Yubu Island (buffalo cart) Sightseeing Tour《3-year-old participants OK!開始時間9:00-16:30所要時間Approx. 7.5 hours18,000 yen →directional marker or indicator15,000suffix for names of swords, armour, musical instruments, etc.
【西表島/1日】観光とアクティビティがセットでお得!水牛車で渡る『由布島』観光&マングローブSUPorカヌー(No.124)開始時間9:00-16:00所要時間Approx. 7 hours14,000 yen →directional marker or indicator12,500suffix for names of swords, armour, musical instruments, etc.
【結論】西表島のベストシーズンは
目的によって変わります!
西表島のベストシーズンをひとことで言うと、海を楽しむなら梅雨明け直後の6月下旬〜7月上旬、ジャングルや観光をゆったり楽しむなら10月〜11月is recommended.
◆トレッキング・滝めぐり:10月〜3月
◆カヌー・SUP:3月〜4月、10月〜11月
◆星空・ナイトツアー:12月〜2月
◆混雑を避けてのんびり:10月下旬〜11月、1月〜2月
Ishigaki Island Tour] Enjoy the World Natural Heritage in a Day★Nakama River Mangrove Cruise & Yubu Island Sightseeing Tour《With Happy Lunch》(No.580)開始時間9:00-15:50 / 10:30-17:20所要時間Approx. 7 hours16,000 yen
【西表島/約2.5時間】当日予約OK!世界遺産西表島を満喫するならこれ☆カヌーで秘境マングローブクルーズ★写真無料&送迎付き(No.6)開始時間:9:00-11:30 / 13:30-16:00所要時間2 hours and 30 min.8,900 yen →directional marker or indicator7,900suffix for names of swords, armour, musical instruments, etc.
Iriomotejima/Half-day Morning]Mangrove Canoeing & Trekking Course to Pinaisara Falls The first one to arrive first wins!開始時間9:00-13:00所要時間Approx. 4 hours11,000 yen
月別!西表島のシーズンカレンダー
| 月 | 海遊び | point |
| January | △ | 星空・旅費を抑えやすい |
| February | △ | 閑散期でのんびり旅 |
| March | semivoiced sound | 海開き・春休みは混雑 |
| April | semivoiced sound | カヌー・SUPに最適 |
| May | semivoiced sound | 上旬頃から梅雨入り |
| June | 'good work' (equiv. of silver star awarded to children at school) | 下旬の梅雨明けが狙い目 |
| July | 'good work' (equiv. of silver star awarded to children at school) | 上旬は海のベスト |
| August | 'good work' (equiv. of silver star awarded to children at school) | 台風・混雑に注意 |
| September | 'good work' (equiv. of silver star awarded to children at school) | 海は温かいが台風に注意 |
| October | semivoiced sound | 海もジャングルも快適 |
| November | △ | トレッキングに最適 |
| December | △ | 星空・北風に注意 |
◎:ベスト ○:楽しめる △:ウェットスーツ推奨
Thorough description of Iriomote Island by season
What is spring, summer, autumn, and winter like in Iriomote Island?

Here are the advantages and disadvantages of each season in Iriomote Island!
【西表島/1日】お得!マングローブSUP/カヌー&”奇跡の島”バラス島シュノーケリングツアー★写真無料&送迎付き(No.92)開始時間9:00-16:00所要時間Approx. 7 hours21,700 yen →directional marker or indicator15,000suffix for names of swords, armour, musical instruments, etc.
Iriomotejima/Half-day afternoon] Mangrove Canoe & Trekking Course to Pinaisara Falls☆Special plan with limited number of participants! For those who want to enjoy in your free time♪ With pick-up and drop-off (No.11)開始時間12:30 - 16:30所要時間Approx. 4 hours11,000 yen
【西表島】世界自然遺産西表島のド定番!SUPで秘境マングローブクルーズ《写真データ無料プレゼント付き》(No.2)開始時間:9:00-11:30 / 13:30-16:00所要時間Approx. 2.5 hours8,900 yen →directional marker or indicator7,900suffix for names of swords, armour, musical instruments, etc.
Spring (March - May) in Iriomote Island

Spring is a relatively pleasant time of year with stable weather.
八重山諸島では日本一早い海開きが行われており、西表島も会場となることもあり、例年3月には海開きが行われます。
3月でも平均気温は20℃くらいあるので、春はマリンアクティビティを存分に楽しめます!

The disadvantage is that the cost of travel is a bit higher due to the pleasant and popular season.
Also, activity tours, airline tickets, ferries, etc. must be held early during the spring break and GW seasons.
さらに、西表島では例年5月上旬頃に梅雨入りします。5月に旅行する場合は、雨でも楽しめるマングローブクルーズやジャングルトレッキングも候補に入れておくと安心です。
| average temperature | maximum temperature | minimum temperature | Average temperature (Tokyo) | |
| March | 20.2°C | 23.1℃ | 17.7°C | 9 degrees Celsius |
| April | 22.8°C | 25.5°C | 20.3℃ | 14°C |
| May | 25.5 ℃ | 28.3℃ | 23.1℃ | 18.2°C |
Learn more about each month↓↓.
Weather in Iriomote Island in March!The average temperature of Iriomote Island in March is about 20 degrees Celsius, which is warmer than Naha. There are many days when you can spend in short sleeves, and we will introduce how to spend March in Iriomote Island, where you can feel the arrival of spring!
Iriomote Island's April weather, clothing, recommendations, and activities!The average temperature in Iriomote Island in April is over 22°C and is called "Urizun". Keep in mind that Okinawa is often hit by typhoons, so there is a possibility that typhoons may inevitably come.
Weather, clothing, and recommended activities for May in Iriomote Island!In May in Iriomote Island, the average temperature exceeds 25 degrees Celsius, and while you can feel the summer, the rainy season begins earlier than on the mainland. Here are recommended ways to spend May in Iriomote Island!
Summer (June-August) in Iriomote Island

Iriomote Island in summer.A very popular season to enjoy the ocean at its best.It is!
You can enjoy swimming in the calm sea and marine activities such as snorkeling and diving.
特に梅雨明け直後の6月下旬〜7月上旬は、晴天が続きやすく台風もまだ少ない、海を楽しむのにぴったりのタイミングです。

デメリットは、梅雨明け後に本格的な台風シーズンに入ること。特に8月〜9月は台風が接近しやすく、タイミングが悪いと予定通りに過ごせないことも。
Also, since it is the peak season, the number of tourists increases and travel costs are higher.
If you want to enjoy the resort in summer, we recommend making reservations as early as in spring!
| average temperature | maximum temperature | minimum temperature | Average temperature (Tokyo) | |
| June | 27.4°C | 30.2°C | 25.1°C | 21.4°C |
| July | 29°C | 32.1°C | 26.5°C | 25°C |
| August | 28.3 °C | 31.1°C | 25.8°C | 26.4°C |
Learn more about each month↓↓.
Weather, clothing, and recommended activities in Iriomote Island in June!June is the rainy season, but what about Iriomote Island? What you are interested in is the weather and the appearance of Iriomote Island unique to the season you visit, isn't it? This time, I would like to introduce Iriomote Island in June.
Weather, clothing, and recommended activities for July in Iriomote Island!Iriomote Island, which has a rainy season in the latter half of June, has a beautiful blue sky of midsummer when the rainy season ends. July, when you can see such beautiful blue sky, is the best season for sightseeing.
Weather, clothing, and recommended activities for August in Iriomote Island!August is the month when many people go on vacation! Let's check the weather and appropriate clothes for Iriomote Island in August, when many tourists from home and abroad visit the island and make it lively, before your trip!
Autumn (September to November) in Iriomote Island

Except for Silver Week, tourists have calmed down,Recommended season to enjoy Iriomote Island slowly.It is.
気温も下がり、西表島で人気のアクティビティ「トレッキングツアー」にも参加しやすくなります!
10月はまだ海も温かいので、シュノーケリングとジャングル散策の両方を楽しみたい方には特におすすめです。

One disadvantage is that September is still a time when typhoons are common!
The temperature difference between morning and evening can be significant, so be sure to respond frequently with your belongings and clothing.
| average temperature | maximum temperature | minimum temperature | Average temperature (Tokyo) | |
| September | 27.3°C | 30.1°C | 24°C | 22.8°C |
| October | 25.1°C | 27.6°C | 23 degrees Celsius | 17.5°C |
| November | 22.7 °C | 25°C | 20.5°C | 12.1°C |
Learn more about each month↓↓.
Weather, clothing, recommended spots, and activities in Iriomote Island in September!September in Iriomote Island has a lingering summer heat with an average temperature of 26°C and a maximum temperature of 30°C. It is also the typhoon season, and with it, the atmospheric pressure is unstable and squalls are frequent.
10月の西表島の天気・服装・おすすめスポット・アクティビティ!In October, Iriomote Island has temperatures around 25 degrees Celsius, with noticeable cirrostratus clouds and heavy rainfall. Bathing is possible, but in some cases wet suits are required for snorkeling due to the low water temperature.
Weather, clothing, recommendations, and activities for November in Iriomote Island!西表島の11月ってどんな感じ? 西表島の11月は台風シーズンを終わり、東京の秋くらいのような過ごしやすい日が続きます。 今回は西表島の11月の気温、服装、混雑期を避けたこの時期に行きたいおすすめスポットやアクティビティを […]
Winter (December to February) in Iriomote Island

Winters in Iriomote Island are mild compared to those in Honshu, with an average temperature of 19°C, making it a comfortable climate.
andThe air is clearer in winter,Night tours are popular for observing the beautiful starry skyの季節です!

Even though the climate is mild, it drops to about 16°C at night, so long sleeves are a must!
海水浴は難しいですが、ウェットスーツを着用すればダイビングを楽しむこともできます!
また冬は北風で波が高くなる日が多く、石垣島と上原港を結ぶフェリーが欠航しやすい時期です。宿やツアーは大原港側からもアクセスしやすいか確認しておくと安心です。
| average temperature | maximum temperature | minimum temperature | Average temperature (Tokyo) | |
| December | 19.5°C | 22.1°C | 17.7°C | 7.5°C |
| January | 18.3°C | 20.4°C | 16.3°C | 5°C |
| February | 18.9 °C | 21.4°C | 16.7°C | 5.7°C |
Learn more about each month↓↓.
Weather, clothing, recommended activities and sightseeing spots in Iriomote Island in December!December is the off-season in Iriomote Island, but it also has its own charms! For those who plan to visit Iriomote Island during this season, we will introduce recommended activities and what to wear and what to prepare.
Introducing the weather, clothing, and recommended activities for January in Iriomote Island!Iriomote Island is so mild that you can enjoy hibiscus even in winter. We will guide you on the temperature, weather, and clothes that you should be concerned about before going on a trip. Recommended activities during this season are also available!
Introducing the weather, clothing, and recommended activities for February in Iriomote Island!What is February like in Iriomote Island? February in Iriomote Island is not so cold compared to the mainland, but the north wind peculiar to Okinawa becomes stronger. Therefore, windproof measures are essential! However, you can enjoy marine activities without any problem if you wear a wetsuit, so [...].
Introduced by season!
Recommended Activities in Iriomote Island

Iriomote Island offers a full range of activities to enjoy the great outdoors!
シーズン別にご紹介しますので、ご参考にしてください!
Click here for tour ranking of Iriomote Island
Recommended Spring Activities
SUP

SUP isThis popular activity involves standing on a large board and using a long paddle to navigate through the water!
Spring in Iriomote Island isWarm and relatively calm windsなので、SUPを体験するのにおすすめのシーズンです。
⬇︎SUPツアー一覧を見る⬇︎
Iriomote Island SUP Tour Enjoy the beautiful rivers of Iriomote Island with mangroves by popular SUP. (全55件) アクティビティの詳細を見る 
On Iriomote Island, it is also a good place to observe wild creatures up close, which become active in spring.
↓ Click here for recommended related tours ↓ Click here for recommended related tours
【西表島】世界自然遺産西表島のド定番!SUPで秘境マングローブクルーズ《写真データ無料プレゼント付き》(No.2)開始時間:9:00-11:30 / 13:30-16:00所要時間Approx. 2.5 hours8,900 yen →directional marker or indicator7,900suffix for names of swords, armour, musical instruments, etc.
【西表島】当日予約OK☆茜色の夕焼けに包まれる!世界遺産西表島の大自然の中でサンセットSUPツアー★《写真無料&上原地区送迎OK》(No.4)開始時間17:30-19:00所要時間Approx. 1.5 hours8,900 yen →directional marker or indicator7,900suffix for names of swords, armour, musical instruments, etc.
【西表島/1日】お得!マングローブSUP/カヌー&”奇跡の島”バラス島シュノーケリングツアー★写真無料&送迎付き(No.92)開始時間9:00-16:00所要時間Approx. 7 hours21,700 yen →directional marker or indicator15,000suffix for names of swords, armour, musical instruments, etc. Iriomote Island SUP Tour
Click here for a list of popular rankings
Recommended Summer Activities
snorkeling

Summer is the sea! Marine activities!You can enjoy snorkeling in the beautiful sea of Iriomote Island.
暑い夏に水中でリフレッシュできるのが魅力的!

Even small children can experience it!
透明度の高い西表島の海で、美しい珊瑚やカラフルな熱帯魚に会いに行きましょう。
↓ Click here for recommended snorkeling tours ↓ Click here for recommended snorkeling tours
【西表島/約2時間】当日予約OK!ウミガメに会えるかも☆奇跡の島”バラス島”シュノーケリングツアー★写真無料&送迎付き(No.122)開始時間:9:00-11:30 / 13:30-16:00所要時間Approx. 2 hours8,900 yen →directional marker or indicator7,900suffix for names of swords, armour, musical instruments, etc.
A guide from Panari Island (Aragusuku Island)☆ Walking & Snorkeling Tour to "Panari Island" with Mermaid Legend★Lunch included (No.111)開始時間9:30-16:45所要時間Approx. 7 hours11,500 yen
Iriomotejima Island/3.5 hours] Sightseeing & Snorkeling Tour to "Hatoma Island," an unspoiled and unexplored island where you can play in the afternoon You will encounter sea turtles with high probability! You will be impressed by one of the best transparency in Yaeyama♪ (No.94)開始時間12:00 - 15:30所要時間Approx. 3.5 hours11,000 yen Iriomote Island Snorkeling Tour
Click here for a list of popular rankings
Recommended Fall Activities
trekking

Trekking tour to enjoy the virgin forests of Iriomote Island with your whole body.
Summer heat eases,Comfortable temperatures are ideal for fall trekking.It is!

The high rate of tours is another attraction of Iriomotejima Jungle Trekking.
木々に囲まれているため小雨程度の雨なら決行されることが多いので、台風が多い9月でも安心ですね!
↓ Click here for recommended related tours ↓ Click here for recommended related tours
World Heritage Iriomote Island] Participation is possible from 3 years old! Jungle Trekking Tour to Kula Falls《Comes with free photo data gift》(No.45)開始時間:9:00-11:30 / 13:30-16:00所要時間Approx. 2.5 hours5,900 yen
Iriomotejima/Half-day Morning]Mangrove Canoeing & Trekking Course to Pinaisara Falls The first one to arrive first wins!開始時間9:00-13:00所要時間Approx. 4 hours11,000 yen
Iriomotejima Island / 1 day】To the top of Pinaisara Falls and the waterfall basin! Special tour with limited number of participants☆Mangrove canoeing & trekking course♪The view from the top of the waterfall is sure to impress you♪ Lunch included (No.12)開始時間9:00-16:00所要時間Approx. 6.5 hours14,000 yen Iriomotejima Jungle Trekking Tour
Click here for a list of popular rankings
Recommended winter activities
Night Tour

In winter, the air becomes dry,More than any other season.Beautiful starry skyIt appears to be
西表石垣国立公園は日本で初の「星空保護区」に認定されており星空は圧巻!絶対に見ておきたい絶景です。

Night tours are also a great way to see nocturnal creatures!
Why don't you join us for this activity, which is available only for Iriomote Island guests?
↓ Click here for recommended night tour plans ↓ Click here for recommended night tour plans
【西表島/夜】しし座流星群観測チャンス!天然のプラネタリウム!星空&亜熱帯ジャングルナイトツアー♪当日予約OK!子連れ家族・団体旅行にもおすすめ(No.16)開始時間20:00-22:00所要時間Approx. 2 hours5,900 yen →directional marker or indicator4,900suffix for names of swords, armour, musical instruments, etc.
【西表島/約2時間】当日予約OK!サンセット&ナイトカヤックツアー☆世界自然遺産の西表島で新体験♪写真無料&送迎付き(No.65)開始時間Summer: 18:00-19:30(Winter) 16:45-18:15所要時間Approx. 2 hours8,900 yen →directional marker or indicator7,900suffix for names of swords, armour, musical instruments, etc.
【西表島/約2時間】当日予約OK!サンセット&ナイトSUPツアー☆世界自然遺産の西表島で新体験♪写真無料&送迎付き(No.52)開始時間Summer: 18:00-19:30(Winter) 16:45-18:15所要時間Approx. 2 hours8,900 yen →directional marker or indicator7,900suffix for names of swords, armour, musical instruments, etc.
Iriomote Island Night Tour (star gazing)
Click here for a list of popular rankings
時期選びで失敗しないために
知っておきたい3つのポイント
西表島のベストシーズンを選ぶときは、気温だけでなく次の3つもチェックしておきましょう。
①梅雨と台風の時期
梅雨は例年5月上旬〜6月下旬頃、台風は7月〜9月、特に8月〜9月に接近しやすくなります。
この時期に旅行する場合は、雨でも催行されやすいツアーを選んだり、日程に余裕を持たせたりするのがおすすめです。
②混雑と旅費が上がる時期
春休み・GW・夏休み・シルバーウィーク・年末年始は観光客が増え、航空券や宿泊費も高くなりがちです。
これらの連休を外すだけで、同じ季節でもゆったり旅行を楽しめます。
③冬のフェリー欠航
冬は北風の影響で、石垣島〜上原港のフェリーが欠航し、大原港発着に変更されることがあります。
宿やツアーの集合場所がどちらの港に近いかも確認しておきましょう。
Advance purchase of ferry tickets is recommended☆.
Visit Iriomote Island conveniently and comfortably!

If you purchase a ferry ticket in advance, you can easily board the ferry on the day of the event by simply showing your smartphone☆.
There is no need to worry about getting caught in a line at the ticket booth on the day of the event.
Advance reservations are essential if you want to enjoy your trip to the fullest without anxiety!
Click here to book Iriomote Island ferry tickets.
Frequently Asked Questions (FAQ) about the best season in Iriomote Island
目的によって異なりますが、海を楽しむなら梅雨明け直後の6月下旬〜7月上旬、トレッキングや観光をゆったり楽しむなら10月〜11月がおすすめです。春(3月〜4月)も気候が穏やかで、カヌーやSUPにぴったりの時期です。
例年3月に海開きが行われ、快適にシュノーケリングや海水浴を楽しめるのは5月〜10月頃です。冬もウェットスーツを着用すればダイビングなどを楽しめます。
梅雨は例年5月上旬〜6月下旬頃、台風シーズンは7月〜9月で、特に8月〜9月は台風が接近しやすくなります。この時期に旅行する場合は、日程に余裕を持たせておくと安心です。
Summer is the season when you can fully enjoy the sea of Iriomote Island, and marine activities such as snorkeling and diving are popular, but after the rainy season, you need to pay attention to the weather as it enters typhoon season. Also, since there are many tourists and travel costs are high, early reservations are recommended.
Winter (December to February) is mild and more comfortable than in Honshu. Stargazing and night tours are especially popular, and beautiful starry skies can be observed. However, swimming in the sea is difficult, and diving can be enjoyed if you wear a wetsuit. Temperatures drop at night, so be prepared for cold weather.
春休み・GW・夏休み・シルバーウィーク・年末年始などの連休を外すと、航空券や宿泊費を抑えやすくなります。特に10月下旬〜11月や1月〜2月の平日は観光客も少なく、ゆったり旅行を楽しめます。
summary

In this issue, we introduced the best season for travel to Iriomote Island.
海を楽しむなら梅雨明け直後の6月下旬〜7月上旬、ジャングルや観光をゆったり楽しむなら10月〜11月、星空なら冬がおすすめです。
どのシーズンも良さがあり、年中楽しむことができるのが西表島の魅力です!
Please find your best season and visit Iriomote Island.
↓Click here to read the article.
Held around Ohara Port in Iriomote Island! Introducing activities to enjoy the great nature!Did you know that there are many untouched fields in the port called Ohara Port that locals in Iriomote Island love? Here are five activities you can do near such Ohara Port!
11 recommended driving courses and spots in Iriomote Island!Iriomote Island is rich in nature. Not only canoeing and trekking, but also driving is recommended! Let's see various nature and creatures while going around the highlights by rental car.
10 beautiful night views and starry sky spots in Iriomote Island, the first starry sky reserve in Japan!Let's see the night view in Iriomote Island! 10 beautiful nightscape & starry sky spots in Iriomote Island What kind of scene comes to your mind when you hear the word "nightscape"? Many of you may imagine a beautifully lit up townscape or one of the three most famous nightscapes in Japan. The [...]...











