The winds which change their direction with the changer in the season are called periodic or seasonal winds. Monsoon winds are an example of seasonal winds. Period winds, seasonal winds or monsoons winds are the result of vast temperature differences between the hot summer and cold winter, where there are large land masses surrounded by water bodies.
The monsoon winds are typical example of seasonal or periodic winds. They are extensive and also well developed among the seasonal winds. The word ‘Monsoon’ is derived from an Arabic’ word ‘Mousim means seasonal. The Arabs have noticed the character of periodical reversal of winds on the Arabian sea and called them monsoons. The same word is now applied to the seasonal winds of the world.