Climate

Geography of Pakistan · The land of Pakistan. The idea in plain words, the rules to remember, the mistake to avoid and a worked example, written and checked by Mega Lecture.

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The idea

Most of Pakistan is dry, and rain comes from three sources. The monsoon brings rain from July to September. In summer the land heats up and forms low pressure, which draws in moist winds from the sea. These winds reach the north-east first and rise over the hills there, so Murree and Islamabad are the wettest places.

Western depressions come from the Mediterranean region between December and March and bring winter rain and snow to the north and west. Convectional rain falls in short, heavy thunderstorms when hot ground makes air rise quickly.

Temperature depends on latitude, height above sea level and distance from the sea.

Rules to remember

Common mistake

Students often say the monsoon is caused by the sea heating up. It is the land that heats faster, forming low pressure that pulls in moist air from the sea.

Worked example

Lahore and Peshawar both receive monsoon rain, but Lahore receives much more. Why?

  1. Monsoon winds enter Pakistan from the east.
  2. They reach Lahore early, while they still carry a lot of moisture.
  3. As the winds travel further west they lose moisture as rain along the way.
  4. Peshawar is at the far western end of their path, so little moisture is left.

Answer: Lahore is nearer the start of the monsoon winds' path, so it gets more rain than Peshawar.

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