eli5: why isn’t the summer Solstice the hottest day of the year?

Question

It is the longest day, so it gets the most sunshine, why is it hotter latter in the summer when the days are getting shorter again???

In: 341

Answer 1

Also, the summer solstice isn’t the “first day of summer” as is commonly reported. The hottest 3 months of the year are June, July and August. https://www.ncei.noaa.gov/news/meteorological-versus-astronomical-seasons