Since I started at the bottom (and then kept clicking on 'in response to') and was so fasinated by the clouds, I missed the fact that it was a sunset series.
For most of my decades of visiting, my rule of thumb, or expression, or experience has been: one cloud free sunset per week.
But I have not been there in every month so I don't know if there is a trend of clouds over Mexico.
Thanks for sharing your trip and photos.