Weather & Radar
Home / Editor's Pick /

Know your rainbow: Do you know all the different types?

09:25 PM
2 October 2022

Rains & Rainbows
Do You Know All the Different Types?

Dramatic double rainbow spotted by a Weather & Radar userDramatic double rainbow spotted by a Weather & Radar user

If you're tired of the rain, then let's take a look at the bright side. Or, in this case, on the colorful side. Because rain can often lead to rainbows!

A rainbow occurs when the sun shines on a curtain of rain in the air. The sunlight is split and reflected by the raindrops. We see the different colors in a rainbow because the colors in the sun's rays all have different wavelengths and are refracted differently.

Dharamsala RainbowA rainbow forms above the Kangra valley as the evening sun comes out after a heavy rainfall in Dharamshala - © picture alliance

The sun's rays contain all the colors at once. But when the sun's rays hit a round raindrop, the drop behaves like a prism, both deflecting and reflecting the light, splitting it into several colors.

The sun's position on the horizon determines the rainbow's appearance and shape. The sun must be at an angle of less than 42 degrees above the horizon, and the lower it is, the more curved the rainbow will be.

rainbow infographic

Double rainbows occur when there are two reflections on the back of a single raindrop, but at different angles.

Let's take a look at the rainbow's ghostly sister: the fogbow. The white arc contrasts beautifully with the light blue sky.

Fogbows are also called white rainbows and occur in much the same way as ordinary rainbows, with sunlight refracting through water droplets in the sky. The only difference is the size of the water droplets.

In rainbows, the water droplets are larger, so we can see more colors refracting through the droplets. In a fogbow, light is refracted through much smaller droplets, so only the white color appears.

Sometimes, however, a red band can be seen at the outer edge of the misty arc and a blue band at the inner edge of the arc.

But if there is gold at the end of the rainbow, what might be hiding at the end of a fogbow?

We want to see your cool weather and nature experiences! You can send us photos and videos via the uploader here in the news section, or with the link here.

Weather & Radar editorial desk
12:30 pm
20 March 2023
Delhi Rain

Weather in Delhi

Heavy Downpour with Hailstorm Expected

11:53 am
19 March 2023
Crop Losses Maharashtra

Erratic Weather in India

Hails, Heat, Rain and Crop Losses

11:51 am
18 March 2023
Mid March Weather

Climate is Changing!

March Weather so far!

All articles
Weather & Radar
Web | App
facebooktwitterinstagramContact us
IN
Great Britain
Ireland
USA (English)
Privacy policy | Legal info