Colours of an overcast coast
Grey weather has a palette of its own. Try looking for the colour inside what first appears colourless.

Let your eyes adjust
An overcast day softens contrast. At first, the whole shore may look grey. After a few minutes, warmer stone, green water and the blue cast of distant land become easier to distinguish. Give yourself time before reaching for a camera.
Choose three colours and describe them with ordinary comparisons: pencil lead, dry straw, the inside of a shell. Names matter less than the act of comparing.
Keep a small palette
Draw three boxes in your notebook and add words or quick shading. If you use a phone photograph as a reminder, remember that automatic processing can change colour and contrast. It is a record, not a measurement.
Look at one subject in shade and in open light. The difference may be more interesting than the subject itself. Keep your attention on safe, accessible ground.
Revisit in different weather
Return on a brighter day and make the same three-colour note. There is no right version of the scene. A place can be familiar without ever looking exactly the same.