What I posted is 80% correct. About rain:
- Rainfall is generally higher in Iran due to its varied geography and the influence of the Caspian Sea and Zagros Mountains.
- GCC countries are predominantly arid, with limited rainfall concentrated in specific regions like Oman’s Dhofar and Saudi Arabia’s Asir Mountains. On average, GCC rainfall is about 30% or less of Iran’s national average.
Let us pretend that your data is correct (I doubt it as a quick Google search, even Wikipedia official weather records from the cities I mentioned (Riyadh, Isfahan, Yazd), 30% more rainfall is nothing considering how little rainfall Arabia and Iran receives overall compared to many regions of the world.
Point here is that Iran is mostly an arid mountainous country with numerous deserts much like much of Arabia is. The only difference is that the mountains in Iran (only in the small north next to Tehran) are taller. Otherwise there is little difference.
Southern Hejaz, Southern KSA, Northern Yemen (where over 50 million people live), just like Northern Iran (around Tehran and north towards the Caspian Sea) this is where most of the population, mountainous greenery etc. can be located in both regions. Overall it is a small area for both regions.
Anyway this does not mean anything, 10.000 years ago most of Arabia was very fertile and in 10.000 years time it might become savannah like again. Those are climatic circles.
Anyway I love over beautiful varied deserts (mountainous, rocky (huge areas of KSA are like Grand Canyon, sandy (some of the largest sand dunes in the world - a spectacular sight), savannah like, steppe), our many mountain ranges, 1000's of extinct volcanoes, green areas, 2000 + km tropical coastlines and some of the most beautiful coral reefs (Red Sea) and beaches, 2000 + volcanic and tropical islands, agricultural areas, mangroves, snowy mountains in the north, tropical areas in the south and the wild untouched nature.
With the Saudi Green Initiative (planting 10 billion trees), many lost forests will emerge again and this will help make the weather more wet.
