September is autumn in northern Vietnam with dry or wet weather depending on conditions of a specific year, possibly some showers, pleasant temperatures (24oC-34oC) . There may be typhoons hitting northern Vietnam in September which often caused torrential rain, flash floods, and/or landslides in the far northern mountains. It is less likely but possible that there are typhoons in the Central Coast of Vietnam in September.
September is the beginning of the rainy season with pleasant temperatures in the Central Coast of Vietnam.
September is the high rainy season in the Central Highlands and southern Vietnam. The temperatures in the Central Highlands are 19-30oC and those in southern Vietnam are 25-32oC.
The prevalent winds in Vietnam in September are
- The Southeasterly Wind that affects northern Vietnam and causes moist air in the Red River Delta.
- The Southwesterly Wind coming from the Equator which causes daily rain in the Central Highlands and in southern Vietnam.
- The Westerly Wind, which is in fact the Southwesterly Wind, affects the Central Coast of Vietnam.
September is the time that the Intertropical Convergence Zone has axis over the Central Coast of Vietnam causing the accumulation of clouds over this region, hence heavy and long-lasting rain here.
Possible Dangers From Extreme Weather: Snow in the mountains of the North of Vietnam
There are chances of dangerous weather in far northern Vietnam in September which is often a result of torrential rain.
If there were risks from weather conditions, they should to be updated in the list below.
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