South-West monsoons account for the rainfall along the Malabar Coast while North-East monsoons account for the rainfall along the Coromeodal Coast or East Coast.
Most rainfall typically occurs on the western coast of continents, particularly in regions influenced by prevailing winds and ocean currents. The western coasts of continents, like the Pacific Northwest of the United States, often experience orographic lift, where moist air rises over mountains, leading to increased precipitation. In contrast, eastern coasts may have drier conditions, although this can vary based on specific geographic and climatic factors. Overall, the western coast tends to receive more consistent and abundant rainfall.
Several towns along the coast were affected by the cyclone, including Townsville, Cairns, Mackay, and Rockhampton in Queensland, Australia. These towns experienced strong winds, heavy rainfall, and flooding as a result of the cyclone.
Rainfall decreases from east to west in the northern plains primarily due to the influence of the Himalayas and the prevailing winds. The eastern part receives moisture-laden winds from the Bay of Bengal, resulting in higher rainfall. As these winds move westward, they lose moisture while ascending over the mountains, leading to drier conditions in the western regions. Additionally, the topography and distance from moisture sources contribute to this rainfall gradient.
When a hurricane is at sea, it can be fairly symmetrical. However, when a hurricane makes landfall, the side of the storm with onshore winds tends to have stronger winds and more rainfall. Typically, when the track of the storm is perpendicular to the shoreline, the onshore winds will be on the rightside of the storm track, since hurricanes circulate counterclockwise. The side with offshore winds draws in drier air from the land, so there is less rainfall on that side.
Cherrapunji, located in northeastern India, receives the heaviest rainfall primarily due to its geographical position and the influence of the monsoon winds. It is situated on the windward side of the Khasi Hills, where moisture-laden winds from the Bay of Bengal are forced to rise, leading to intense orographic rainfall. The combination of high elevation and the convergence of various weather patterns contributes to its extraordinary annual rainfall totals.
The Coromandel coast lies on the rain shadow or leeward side of the western ghats while Malabar coast lies on windward side of western ghats.
Frederick Max Haase has written: 'Analysis of lower tropospheric winds observed along the upper Texas coast, 25 May-15 June, 1966' -- subject(s): Ocean-atmosphere interaction, Troposphere, Winds 'Rainfall patterns near the upper Texas coast' -- subject(s): Rain and rainfall, Sea breeze
India has heavy seasonal rainfall brought by monsoon winds
Northern winds
The Pacific coast of Siberia receives more rainfall due to its proximity to the Pacific Ocean, which leads to moisture-laden air masses being brought inland by prevailing winds. The mountainous terrain along the coast can also enhance rainfall through orographic effects, where air is forced to rise and cool, causing precipitation to form.
During a hurricane, coastal areas are prone to storm surge, high winds, and heavy rainfall. The storm surge, which is a rise in sea level caused by the storm's winds and low pressure, can cause significant flooding and erosion along the coast. Additionally, high winds can contribute to structural damage to buildings and infrastructure near the coast, while heavy rainfall can further exacerbate flooding in low-lying areas.
Because the winds blowing into the Eastern coast come over the Indian Ocean and so are moisture bearing whereas those coming into the Western coast have travelled mainly over the Saudi Arabian desert.
Durban receives higher rainfall than Port Nolloth due to its location. Durban is situated on the east coast of South Africa, where warm, moisture-laden air from the Indian Ocean brings abundant rainfall. In contrast, Port Nolloth is located on the west coast, where the prevailing winds bring dry air from the interior of the continent, resulting in lower rainfall.
The monsoon winds are responsible for the rainfall experienced over a greater part of India.
Punjab receives rainfall from 3 sources- western disturbances, south west monsoon winds and retreating monsoon winds.
Hurricane Hanna hit the coast of southern Texas, making landfall on Padre Island on July 25, 2020. It brought strong winds, heavy rainfall, and storm surge to the area.
If you count the jet stream then the prevailing winds are from West to East making the the West coast the windward side. (This is of course given that the assumption is made over a period of time.) Not taking into account the jet stream, there have been numerious times when the honor has floated between each coast for prevailing winds. So the real question, does it really matter?