and don't ever move to Iceland!
what 1 daily snapshot, taken during daytime, does not show is locally forming clouds - and of course what happens when temperature drops during nightfall and after.
on the side: I realized that I have no lenghty cloud cover experience in any one place/country/hemisphere since 2000.
Wherever I live I do profit from having observed and pondered the heavens previously from somewhere else.
But memory and experience does not at all suffice to understand or even predict because new local conditions, geography, use of the land, are such significant factors.