The Tehran dialect of Persian is the standard dialect spoken in Iran and in Iranian media (except some local media).
In the name of Allah
Tehran is nestled among hills and deserts on the southern slopes of the Alborz Mountain Range.The city can be divided into three regions by terrain: Northern Mountain, with the highest point being Tochal Mountain at 3933 meters (12,904 feet); Foothills, including areas like Evin Darake, Niavaran, Hisarak and Sohanak; and Southern Plain, which is where much of the city is located and slopes gently from north to south. Suburban areas Shahriar, Varamin and Ray (home to Bibi Shahr Banu Shrine) are located south of Tehran, surrounded by the Ray Mountains to the South.
Tehran’s northern mountains and southern plains have distinct climates. The main source of precipitation is humid winds that blow from the Mediterranean Sea in the west; the Alborz Mountain effectively blocks the moisture thus causes drier air over the southern plains while the mountains are humid.
In terms of seasonality, Tehran’s winter is affected by the Siberian system in the north, which causes the northern parts of the city to be cold, and the central and southern plains to be temperate.
Tehran is a dynamic city with many unique neighborhoods differed by their geographic factors, economic, cultural and historical backgrounds. Closer to the mountains in the north streets are steeper, while streets are level in the south. High-rise buildings are concentrated in the lower northern part of the city and downtown. Government office buildings are mostly downtown. In the west and northwest parts of the city like Districts 2, 5 and 22, many buildings are completed in recent years and therefore more modern. There is also usually more green space and ample parking in this area. On the other hand, districts such as 12 and 20 have plenty of historic sites and traditional architecture.
The Tehran dialect of Persian is the standard dialect spoken in Iran and in Iranian media (except some local media). It is also the accent taught when people learn Persian in non-Persian-speaking countries. The Tehran dialect originated in the Qajar Dynasty (1785 – ۱۹۲۵), though modern speakers have a slightly different accent. The old Tehran dialect is still spoken in areas like Shemiran but it is slowly vanishing.