The rainy season in southern Asia is called the monsoon season, which brings heavy rains when the southwest monsoon blows. During this time, temperatures drop and humidity rises, improving air quality. The heavy rainfall also affects water quality and soil nutrients, increasing erosion, filling dry river beds, and impacting ocean stratification through strong surface currents from rainfall runoff.

1. Rainy season
monsoon - rainy season in southern
Asia when the southwestern
monsoon blows, bringing heavy rains

2. Effects
• In tropical areas, when the monsoon arrives daytime high
temperatures drop overnight low temperatures increase.[32] During
the wet season, a combination of heavy rainfall and in some areas,
such as Hong Kong, a wind more off the ocean, significantly
improve air quality.[33] In Brazil, the wet season is correlated to
weaker trade winds off the ocean.[26] The pH level of water
becomes more balanced due to the charging of local aquifers during
the wet season.[34] Water also softens, as dissolved materials
lower in concentration during the rainy season.[35] Erosion is also
increased during rainy periods.[6] Arroyos that are dry at other
times of the year fill with runoff, in some cases with water as deep
as 10 feet (3.0 m).[36] Leaching of soils during periods of heavy
rainfall depletes nutrients.[36] The excessive runoff from land
masses significantly impacts nearby ocean areas, which are more
stratified, or less mixed, due to stronger surface currents forced by
the heavy rainfall runoff

3. rainy season clothes