Just as you'd expect commonalities painting the same view several days in a row, you'll see many many many differences.
At the beach, the differences will be an effect of the changing tides: day to day at different times, winds influence this also. The weather changes the effects of color, a bit of fog gives sometimes great sunrises, so yellow! And the orange-red one keeps being rare. Predicting the view you're going to witness seems almost impossible.
SSU01-2019 Seascape Plein air Painting 'Sunset Evening'
When you study sunsets you'll sometimes experience some that last and last! Some never make it all the way through.
Here the second line of sky-reflected water gives a great composition.
A few days later the tide changed so much, the sunset and low tide didn't line up anymore.
↪ Just as a farmer knows nature, you as a painter will become just as sensitive to it, studying it while painting it.
Here the colors I've used starting this painting:
And first stage of the painting:
And mixes during: