Australia is among the sunniest countries yet also among those with the highest precipitation (although per area). Interesting. I guess if it rains, it pours there.
Also to do with the size of the country I reckon. The Outback is a vast area that doesn't often have clouds and accounts for a large proportion of the country's total area. The tropics are also a huge area that get heaps of precipitation, but far smaller in area than the inland arid regions. Having such a large country with such diverse ecosystems means it can appear on both quizzes.
It would seem that (maybe) its proximity to the Shatt al-Arab pushes its cloud coverage up a tad. As per the source, it is tied with Pakistan for the sunniest countries not to make the cut.
I was there as a contractor (working at Lemonnier) - so I didn't get out of the city, unfortunately. Some folks who were there longer got out to see Lake Assal and features of the Great Rift, which I wish I had had time to see!
Hopefully you also thought that was "most" in the sense of highest percentage, rather than highest raw number. Else, the lack of Indonesia and Pakistan should probably have tipped you off before that...
Well, the thumbnail definitely should have tipped you off before that, but you get the idea/
Yemen is a lot greener, wetter, and more mountainous than the rest of the Arabian peninsula. The topography creates more rainfall. Syria is not far enough south to be part of the Arabian desert, and, though not exactly lush, most of its northern territory is semi-arid shrubland. That's where agriculture originally started; not as desolate as these other places.
Large parts of Israel are only really habitable and amenable to agriculture because of the hard work put in by Zionist settlers and later Israelis to improve the land. Lots of complex well and irrigation systems and so forth but almost no natural rain.
Having been to Botswana, I can say it's almost always sunny. To be fair I was there during the dry season, but in my 6 weeks in the country, I think it rained only twice (both times for less than 30 minutes). The country is suffering from it's lack of rain, a resource that it holds very precious (it's currency is named after it, and the blue on its flag represents it). The rain that fills the Okavango Delta mostly comes from the highlands in Angola.
A lot of people forget that most of South Africa's rain occurs in the east, which is where tourists also tend to visit. The Drakensberg mountains create a bit of a rain shadow for most of the rest of the country, seeing provinces like the Northern Cape (which is bigger than Germany) getting very little rain. A further factor is that a lot of the rain in areas like Johannesburg comes very heavily but in short bursts. Joburg is known for its mid-afternoon storms which last less than an hour but are very strong. For most of the morning and even in the afternoon before such a storm you can have almost no cloud cover, and even after the storm clouds clear away very quickly. There's a reason it's called "Sunny South Africa".
Well, the thumbnail definitely should have tipped you off before that, but you get the idea/
Perhaps Tunisia has too much exposure to the Mediterranean to make the cut. Yet Israel is there...
Perhaps Mali's southern territory produces enough cloud coverage to keep it off the quiz. Yet Chad is #3 on the list...
Oman but no Yemen? Iraq but no Syria? And if Syria is not there, again, how is Israel there?
I did complete the quiz 100%, but I can't pretend I did it elegantly.
Large parts of Israel are only really habitable and amenable to agriculture because of the hard work put in by Zionist settlers and later Israelis to improve the land. Lots of complex well and irrigation systems and so forth but almost no natural rain.
Don't know about the others.
South Africa did surprise me though.