If you visit New Orleans is summer, you will experience nearly intolerable heat. Humidity is also high, and it rains a lot, with much greater frequency than at any other time of a year. Over a half of all the precipitation constitute thunderstorms which might also occur in other seasons but rarely. The winds are also very light in the meantime.
And the worst thing about summer—hurricanes. The height of natural disaster falls in late August and continues into early autumn. August must be the worst time to visit New Orleans: not only is it the hottest and the wettest month at the same time, but also the most prone to hurricanes.