[With Conditions] Tips for Seeing the Green Flash at Senaga Island, Okinawa

日本 / 沖縄県

Travel Tips

Published: October 7, 2026 / Updated: October 10, 2026

[With Conditions] Tips for Seeing the Green Flash at Senaga Island, Okinawa

The 'Green Flash,' which shines green for just a few seconds at the last moment of sunset. What conditions are necessary to encounter it at Senaga Island in Okinawa? I have compiled tips on the best times to see it and preparations for the day.

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"If you come to Okinawa,
I want to see a special view."

For those who feel this way,
I want you to know about the phenomenon
that shines green at the moment the sun sets,
"Green Flash".

In places like Hawaii and Guam,
there is a saying that"those who see it will be happy",
making it an auspicious phenomenon.

This time, I will gently explain theconditions and tips to aim for it on Sesokojima Island in Okinawa.

Reasons to Aim for the Sunset on Sesokojima

To get straight to the point,
Sesokojima is a recommended spot to enjoy the sunset,
a stunning view.

The reason is that the west side of the island faces the sea,
allowing you to enjoy the sunset sinking into the horizon at leisure.

Additionally, it’s only about a 15-minute drive from Naha Airport,
making it convenient to stop by on your first or last day of travel.

Conditions to See the Green Flash

The Green Flash is a natural phenomenon
that appears green because the sunlight bends in the air.

However,
it cannot be seen at any time.

The main conditions are the following three:

・Clear air
・No clouds near the horizon
・The sun is visible sinking on the horizon

Even if these conditions are met,
it is not guaranteed that you will see it.

To avoid feeling like,
"I waited for nothing..."
it's recommended to have the mindset of "it's lucky if I see it"when you wait.

Best Times and Hours to Aim

While traveling, you often worry about the weather.

It's said that there are relatively many sightings of the Green Flash on Sesokojima.
Particularly aroundOctober, when the air is clear,
there is a higher chance to see it.

On the other hand, there have also been cases of it being photographed in summer.

Without being too particular about the season,
you can check the sunset ondays with few clouds.

Since the time of sunset changes with the season,
it’s reassuring to check it in advance.

Preparation to Avoid Failure

While waiting for the sunset,
you might find yourself wondering,
"Will I see it today..." and getting anxious.

However, the green glow lasts only a few seconds.
It's recommended tochoose a spot and wait a bit before sunset.

Also, if you stare at the sun for too long,
there is a risk of damaging your eyes.
Please enjoy it withina reasonable range.

If you want to capture the moment in a photo,
it’s useful torecord a video with your smartphone,
making it less likely to miss the instant.

Enjoy the Waiting Time for the Sunset

At Umikaji Terrace on Sesokojima,
there are cafes and shops lined up.

Waiting for the sunset with a drink in hand
is sure to become a travel memory.

The Ryukyu Onsen Sesokojima Hotel on the island has
an outdoor bath with standing hot water,
where you can enjoy the view while soaking in the water.

If you are considering an overnight stay,
it might be nice to check out the atmosphere.

Check out the accommodation plans for Ryukyu Onsen Sesokojima Hotel

Conclusion

The Green Flash is an auspicious natural phenomenon
that you can only encounter on days when the conditions align.

・Sesokojima is an open sunset spot facing the western sea
・Aim for days when the air is clear and there are no clouds near the horizon
・Use video recording to help avoid missing the moment

On your next trip to Okinawa, head to Sesokojima a bit earlier.
You might encounter "the green light of happiness."

Also, there’s "STORYLINE Sesokojima," which has ocean-view rooms,
so please use it as a reference for hotel selection.

Check out the accommodation plans for STORYLINE Sesokojima

Check the weather, transit, and what's happening now to help plan what's next.

See Okinawa right now on Machinau

Machinau Team