Moonbows: What Is a Lunar Rainbow? | The Old Farmer's Almanac

Yes! Rainbows are also visible at night.

They are called Lunar Rainbows or Moonbows.

Rainbow space quality GIF - Find on GIFER

As we all know rainbows in the day appear due to the reflection of the sunlight, yet moonlight brings out rainbow-looking colors in the nighttime and is created when moonlight passes through water droplets in the air.

Moonbows are rare due to a variety of astronomical and weather conditions that need to be just right for moonbows to form.

You are able to witness these moonbows yourself usually two days before and after a full moon each month, however, in the spring season your chances of seeing it are 99.9%.



[Source: Earthly Mission]