Season
The official hurricane season for the Atlantic Basin (the Atlantic Ocean, the Caribbean Sea, and the Gulf of Mexico) is from 1 June to 30 November. As seen in the graph, the season's peak is from mid-August to late October. However, tropical storms and hurricanes can occur outside of hurricane season.
Researchers produce seasonal forecasts but these have somewhat limited skill and tell you nothing about where storms will make landfall, when they will strike, or how intense they will be. There also does not appear to be any link between storm activity early in the hurricane season and activity in the rest of the period, although over periods of many years hurricanes have cycles of greater and lesser activity.
Something to Think About:
The sun’s radiation reaches its peak in June in the tropical Northern Hemisphere. Why, then, doesn't the hurricane season peak in June?
Although solar radiation does peak in June, it takes a while for the oceans to absorb that heat and reach their warmest temperatures. The sun warms the ocean surface first, and these temperatures mix with the cooler water below. It takes time for the ocean to warm to a great enough depth to support tropical cyclone development. Remember also that hurricane formation requires a number of ingredients, not just warm ocean waters. That combination of ingredients usually comes together in summer and early fall.