Need congeography help

[MetalRenard]

"Tropical"
- Needs rain
- Needs year-round constant temperatures

"Arid"
After about 10 minutes of research: On Earth, arid areas tend to be formed along the equator because there is more evapouration than rainfall. This is because the heat causes high pressure zones in those areas and all the water that evapourates is dropped once it has escaped these zones (30 degrees North and South of the equator).

Based on those two things, I think you would need the following conditions to get that kind of situation:
- An air current moving towards the east from the sea to cause rainfall in those areas
- A mountain range along the coast that stops in the point of the map towards the bottom left to prevent said rain reaching the arid zone.
- Would have to be in the tropic of CAPRICORN, not cancer, to allow for the high pressure zone to keep water away from the arid zone and make it fall on the tropical zone. OR turn it upside down, I guess.