What does it mean that the sky is red in the morning?

The bright red light in the morning indicates that there are many water droplets in the atmosphere, which indicates that the weather will turn to rain.

As the saying goes, "Don't go out at sunrise, but go to Wan Li Road at sunset". The bright red morning glow indicates that there are many water droplets in the atmosphere, which indicates that the weather will turn to rain. If there is a fiery red or golden sunset glow, it means that there is no cloud in the west, and the sunlight can be transmitted to form a sunset glow, which indicates that the weather will be fine.

sunlight

Sunlight is a mixture of red, orange, yellow, green, cyan, blue and purple. The wavelengths of these colors of light are different. The red light wave is the longest, followed by the orange light wave, and the purple light wave is the shortest. Molecules in the air and countless tiny dust and water droplets float in the air, which can disperse the colors of the sun. This is called scattering.

The shorter the wavelength of light waves in the sun, the easier it is to scatter light such as purple and blue. The longer the wavelength, such as red and orange light, the less likely it is to scatter. In the morning or evening, the sunlight is oblique, and its distance through the air layer is relatively long, so the scattering is greatly weakened. The most attenuation is violet light, and the least attenuation is red light or orange light. These weakened colored sunlight shines on the sky and clouds, forming bright and dazzling rosy clouds.