Public life in Yemen is overwhelmingly shaped by Islam, so visitors should dress modestly, avoid eating or drinking in public during
Ramadan daylight hours, and be respectful around prayer times and mosque spaces. Most Yemenis are
Sunni, with a significant
Zaidi Shia community in the north, and local religious customs can be quite conservative, so non-Muslims should be discreet about discussing faith or entering religious sites without permission.