Iran experiences two distinct high seasons: spring (March, April, May) and autumn (September, October, November). These periods offer pleasantly mild temperatures, making them ideal for exploring ancient ruins, vibrant bazaars, and diverse landscapes. Expect more favorable conditions for sightseeing and outdoor activities, which also means higher visitor numbers and slightly increased demand for services.
Conversely, summer (June, July, August) brings intense heat, especially in central and southern regions, while winters (December, January, February) are often cold, particularly in the mountainous north. These low seasons see fewer international visitors, which can sometimes translate into more tranquil experiences and potential opportunities for more competitive pricing on accommodations and tours, though structured pricing data for Iran is not consistently available.