Our Sunset and Rainbow Information Expo 2025,
Osaka, Kansai, Japan
Our company is providing our sunset and rainbow information
on the seventeen signage displays every day.
The information is available in Japanese and English.
What is the Sunset Information?
The sunset information provides visitors with the following message when there is a possibility of seeing sunsets every day.
Because the west side of the Expo site is in the front of the ocean, visitors can see a wide-ranging view of the sunset over the ocean. (The information will appear approximately one hour before sunset time.)
Conditions for Seeing Beautiful Sunsets
We don't always get to see beautiful sunsets.
When conditions of clouds, water vapor, and dust in the air meet, the sky is dyed like a canvas.
Here are some secrets to seeing beautiful sunsets.
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Few clouds in the western sky at sunset time.
The sun's rays should reach close to the horizon and are not blocked by clouds.
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There are appropriate amounts of dust, water vapor, and other particulates
in the air.
The red and orange lights stand out because particles scatter sunlight.
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Moderate amounts of clouds
in the sky
When the clouds are moderately spread with the red light of the sun, sunsets appear to be tinted red over a wide area.
What is the Rainbow Information?
The rainbow information provides visitors with the following message when a rainbow is visible.
How to find rainbows
A rainbow is a phenomenon that appears when sunlight is refracted and reflected by drops of water in the air, and an art of nature created by sunlight and drops of water. Here are some tips for seeing rainbows.
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Let’s look over to
the other side of the sun.
Rainbows appear on the opposite side of the sun. Let’s look around with the sun at your back.
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Morning and evening are the best times to see rainbows.
Especially during summertime, when the sun is low in the sky in the morning or evening, and when the sun shines after a rain shower, there is a good chance to see rainbows.
Caution: Areas where rainbows are visible have a higher likelihood of sudden downpours and similar localized heavy rains.
Please exercise extreme caution.