We use cookies to personalise site content, social media features and to analyse our traffic. We also share information about your use of this site with our advertising and social media partners.
A rainbow is an optical and meteorological phenomenon that is caused by both reflection and refraction of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.