Note: This Information Bulletin has been compiled through various sources and is solely for information purposes.
Background
'Monsoon' refers to the seasonal changes in atmospheric circulation and precipitation. Monsoon winds blow from cold to warm regions because cold air takes up more space than warm air. Monsoons blow from the land toward the sea in winter and from the sea toward land in the summer.
Source: (www.mrdowling.com/612-monsoon.html)
There are four well-marked seasons in Pakistan namely the Cold Season (December to March), Hot Season (April to June), Monsoon Season (July to September) and Post-Monsoon Season (October and November).
The south-west monsoon reaches Pakistan towards the beginning of July and establishes itself by the middle of the month. The strength of the monsoon current increases from June to July; it then remains steady, and starts retreating towards the end of August, though occasionally, it continues to be active even in September when some of the highest floods of the Indus Basin have been recorded. From the middle of September to the middle of November is the transitory period which may be called the post-monsoon season.
Source: (http://www.cockatoo.com/pakistan/e-01land/ep-lan11.htm
Note: This Information Bulletin has been compiled through various sources and is solely for information purposes.