What's the weather like in the Oriental Rainbow at night?

The sun in the eastern rainbow and the rain in the western rainbow.

In fact, as long as there are water droplets in the air and the sun shines behind the observer at a low angle, an observable rainbow phenomenon may occur. Rainbow usually appears in the afternoon when it just clears up after rain. At this time, the air is less dusty and full of small water droplets. One side of the sky is dark because there are still rain clouds, but the observer can see the sun without clouds above his head or behind him, so the rainbow will be easier to see.

Another place where rainbows are often seen is near waterfalls. When the weather is clear, you can spray water or mist into the air with your back to the sun, or you can create an artificial rainbow.

Moon rainbow, also known as night rainbow, is a very rare phenomenon, which may appear in the night with strong moonlight. Because it is difficult for human vision to distinguish colors in the case of weak light at night, the night rainbow looks all white.