The fluff in the air

Summer clouds are the attention-seekers of the sky. Big, puffy, and full of drama. They form when the sun heats the ground, causing warm air to rise. That warm air meets cooler layers above. Most of what you see are cumulus clouds. Those are the cotton wool types you vaguely consider turning into animals before getting distracted by your phone.

These clouds hang around at different heights. The higher they are, the more majestic they look.

Why the sky does a red carpet routine

Now, that magical moment when everything turns red in the evening. It feels romantic until someone reminds you it is just physics.

As the sun gets lower, its light has to travel through more of the Earth’s atmosphere. Along the way, the shorter blue and violet wavelengths get scattered out. What is left are the longer red and orange ones, which paint the sky like it is trying to win a sunset competition. The technical name is Rayleigh scattering. The non-technical name is “ooh pretty.”

Clouds help make the show better. They reflect that warm light and spread it across the sky. The result? A sky that looks like a flaming cocktail.

Not just a pretty face

This red evening glow can also say something about the weather. A red sky at night usually means good weather the next day. It is not just an old saying your gramma to the cat. There is actual science behind it.