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Typhoons impacting this region are relatively common, with most of these storms doing so from the middle of the year. The most active tropical cyclone season for Vietnam is in 2013, with their meteorological agency tracking 15 storms, in which 9 have made landfall. This article includes any tropical cyclone of any intensity that affected Vietnam.
A tropical year or solar year (or tropical period) is the time that the Sun takes to return to the same position in the sky – as viewed from the Earth or another celestial body of the Solar System – thus completing a full cycle of astronomical seasons.
Typhoon Yinxing, known in the Philippines as Typhoon Marce, was a powerful tropical cyclone that impacted the Philippines before later affecting Vietnam in early November 2024. It was the third tropical cyclone in a series to impact the Philippines, following Tropical Storm Trami and Typhoon Kong-rey a few days earlier, and Typhoons Toraji ...
The following is a list of tropical cyclones by year. Since the year 957, there have been at least 12,791 recorded tropical or subtropical cyclones in the Atlantic, Pacific, and Indian Oceans, which are known as basins. Collectively, tropical cyclones caused more than US$1.2 trillion in damage, unadjusted for inflation, and have killed more ...
A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) compared to a common year. The 366th day (or 13th month) is added to keep the calendar year synchronised with the astronomical year or seasonal year . [ 1 ]
[1]: 28 On average, 11 storms and tropical low pressures develop in the South China Sea during summer of which half are tropical cyclones that originate from the western Pacific. [1]: 28 These storms and cyclones then move westwards towards Vietnam. [1]: 28 On average, Vietnam is affected by 6–8 typhoons or tropical cyclones per year.
A tropical year is approximately 365.2422 days long and a synodic month is approximately 29.5306 days long, [4] so a tropical year is approximately 365.2422 / 29.5306 ≈ 12.36826 months long. Because 0.36826 is between 1 ⁄ 3 and 1 ⁄ 2 , a typical year of 12 months needs to be supplemented with one intercalary or leap month every 2 to 3 years.
The solar year does not have a whole number of lunar months (it is about 365/29.5 = 12.37 lunations), so a lunisolar calendar must have a variable number of months per year. Regular years have 12 months, but embolismic years insert a 13th "intercalary" or "leap" month or "embolismic" month every second or third year.