A rainbow is an optical phenomenon that can be seen in the sky. The reason for this light arc is due to the refraction and reflection of light in water droplets in the Earth’s atmosphere. This happens due to the sun’s rays entering a drop of water, then reflect inside the drop and refract again when leaving it. April is a month of fun little festivals, including National Find A Rainbow Day. Only two days after April Fool's Day, on April 3, 2020, people around the world celebrate Find a Rainbow Day. This day is also used to promote scientific research about Rainbows. Moreover, artists are encouraged to create beautiful images depicting rainbows.  

National Find A Rainbow Day is observed annually on April 3rd.

We have been unable thus far to find the creator of this national day, but we will be sure to keep you posted.