Meghan Markle turns 37 on August 4th, 2018, but don't expect a big birthday bash. Instead, Meghan will be spending her birthday at a wedding! She will attend the marriage of a close pal named Charlie who was an usher at their nuptials. Meghan's style has also taken a major conservative turn since her last birthday. Unlike the previous year, there are no more bare legs and her dresses aren't nearly as short.