Red sky at night, shepherd’s delight (is it true?)

You may have heard the saying: ‘Red sky at night, shepherd’s delight’ but does a red sunset really mean you are going to have good weather?

Yes! The colour red indicates that dust particles are suspended in the atmosphere under the effect of high pressure. This mass of air coming from the west means that you will have clear skies and lots of sun.

On the other hand, when the sky is red in the morning (‘Red sky in the morning shepherd’s warning’) it suggests that the good weather has moved to the east and been replace by lower atmospheric pressures i.e. bad weather and possibly rain.

Source:

True or False by Andrea Mills, Dorling Kindersley