Iriomote Island
Diary
Weather & Tour Highlights on Iriomote Island on November 4, 2026
About today's tours
Today's Iriomote Island isclear weather. It was a bit chilly in the morning, around 22°C, but the temperature rose to around 28°C during the day, making the jungle’s greenery look even more vibrant.
The wind is blowing from the northeast-east, and according to the live report, it is calm at around 3 m/s. Out on the open ocean,Waves about 2.5 meters highSince rough seas persist and a high-surf advisory is in effect, guides are making decisions on ocean tours based on the current conditions, prioritizing safety above all else. Meanwhile, the mangrove rivers are largely unaffected by the wind and offer very calm conditions.
Since it was low tide in the morning, the mangrove tour adjusted its route to account for the tide. On the mudflats,Eviota japonica (species of pygmy goby found in Japanese waters)Or, swing one of the scissorsfiddler crab (esp. species Uca arcuata)One after another, they popped their heads out, and the elementary school students who were there got really excited, shouting, “The crabs are waving!” ♪
| Weather & Temperature | Sunny / High 28°C, Low 22°C |
| Chance of Precipitation | Morning 0% / Afternoon 0% / Evening 0% |
| Wind | Northeasterly wind (current conditions: approximately 3 m/s, northeast-northeast) |
| Wave Height | 2.5 meters, then 2 meters (with swells) |
| Tides (Iriomote) | High Tide / Spring Tide: 2:23 a.m. and 3:52 p.m. / Low Tide: 9:06 a.m. and 9:35 p.m. |
| Notes | Wave Advisory (issued as of November 3). Strong swells in the open ocean. UV index is at the “strong” level. |
| Recommended | Mangrove SUP/Canoeing, Observing Creatures in the Tidal Flats |
Tomorrow's Outlook
Tomorrow, the 5th, as wellSunny forecastThe high will be 29°C. With a 0% chance of rain in the morning, it looks like it will be a great day to get out and about.
Waves are expected to be 2 meters—slightly calmer than today—but swells are forecast to persist. If you have a marine tour planned, please wait for the guide’s decision on the morning of the tour. The wind is forecast to shift from northwest to north.
On a sunny day like tomorrow, I especially recommend...A tour package combining sightseeing on Yufu Island via water buffalo cart with a mangrove tour. A water buffalo cart leisurely making its way through the shallows under a blue sky is an experience unique to Iriomote Island.
At this time of year, they migrate here to spend the winter.Japanese SparrowhawkThis is the season when you can spot wild birds such as these. If you love wildlife, feel free to ask your guide, “What can we see today?” The chance of rain rises to 20% in the evening and beyond, so it’s a good idea to bring a light raincoat just in case.
| Weather & Temperature | Sunny / High 29°C, Low 22°C |
| Chance of Precipitation | Morning 0% / Afternoon 10% / Evening 20% |
| Wind | Northwesterly winds, later shifting to northerly winds |
| Wave Height | 2m (with swell) |
| Tides (Iriomote) | Neap Tide / Spring Tide: 3:40 a.m. and 4:25 p.m. / Low Tide: 9:57 a.m. and 10:26 p.m. |
| Notes | We'll decide on the ocean tour on the day of based on the remaining swell. The sun is strong during the day, so be sure to protect yourself from sunburn. |
| Recommended | Yufu Island Sightseeing & Mangrove SUP/Canoeing, Plus a Starry Sky & Jungle Night Tour in the Evening |
Recommended Activities for This Time of Year!
① Yufushima Sightseeing & Mangrove SUP/Canoe Tour
Crossing while being rocked by a water buffalo cartYubu Island SightseeingAnd so, on Iriomote Island,Mangrove SUP/CanoeThis is a packed itinerary that lets you enjoy all of this in just one day.
Mangrove rivers are largely unaffected by swells from the open ocean, so you can feel safe even on days like this week when the sea is a bit rough. Bathed in the soft autumn sunlight, you can take your time observing subtropical plants and the creatures of the mudflats.
② Private VIP Charter Tour
Enjoy Iriomote Island exclusively with your family or groupExclusive Private Charter Tour.
The biggest appeal is that we can flexibly tailor the itinerary to suit the day’s weather, sea conditions, and your preferences. Even on days when there’s still some swell, we can adjust the plan by selecting areas where you can still have fun, so this is especially recommended during this time of year when the weather is a concern. You can choose between half-day and full-day tours.
③ Starry Sky & Jungle Night Tour
Iriomote Island, where most of the island is covered in untouched nature, has very few city lights,The perfect setting for stargazing.
This week, as we approach the new moon, the moon sets early, making the night sky very dark and the stars appear especially bright. In the jungle at night, you might encounter creatures completely different from those you see during the day, such as the Yaeyama giant fruit bat flying in search of fruit. It gets chilly at night, so please wear long sleeves and long pants.
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