Bananas are primarily grown in humid, tropical regions with high temperatures and rainfall. Key growing areas include Central and South America, Africa, and Southeast Asia

. They are cultivated in about 135 countries worldwide, with major production concentrated in tropical Indomalaya and Australia originally, but now widespread globally

. The top banana-producing countries are India, China, and Indonesia, with India producing about 33 million tons annually, followed by China with 11.7 million tons, and Indonesia with 8.7 million tons

. Latin American countries such as Brazil, Ecuador, and Costa Rica are also significant producers and exporters, with regions like Costa Rica's Caribbean coast and Ecuador's Los Rios and Guayas provinces being notable banana-growing areas

. In addition to tropical zones, bananas are grown in subtropical regions such as parts of Australia (northern New South Wales and southern Queensland) and even in geothermal greenhouses in Iceland, making it Europe's largest banana producer by volume, though not commercially significant

. In summary, bananas grow best in tropical and subtropical climates across:

• Central and South America (e.g., Costa Rica, Ecuador, Brazil)
• Africa (e.g., Tanzania, Angola, Guinea)
• Southeast Asia (e.g., Philippines, Indonesia)
• South Asia (e.g., India)
• Subtropical regions like parts of Australia
• Specialized greenhouse environments like Iceland