When clouds block the sun, alternating rays of light and shadows can appear to radiate from the top or bottom of the clouds. These are called Crepuscular rays where crepuscular is Latin for “relating to twilight.” This is an appropriate name because the rays are often seen when the sun is at a lower angle in the sky, around sunrise or sunset; although, this doesn’t always have to be the case. They are actually parallel rays of light but appear to radiate outward due to perspective. In this photo,the rays and sunlight help to illuminate the well-defined, puffy tops of the cumulus clouds below.
Location: Manchester, UK
Date: 18 June 2014