Having been to Israel, there is no way that I would consider the country, other than the immediate shoreline as being anything but HOT from late May to early October. Plus, the humidity can be quite high and the sun is very intense. Sure, if one frequents the beaches of Tel Aviv and up the coast, there are gentle to strong breezes which can keep one cool. However, venture a short distance from the shoreline, and one will sweat profusely.
This weather pattern prevails in most countries around the Mediterranean and Adriatic. I spent many summers in Italy. The heat builds up during the summer months and by August, the entire country goes on vacation to seaside resorts to escape the heat inland. I recall one summer when a scirocco struck, carrying sand up from the Sahara. Shutters were shut tight to maintain the cool interior while shielding homes from the sandy wind.
However, venture a short distance from the shoreline, and one will sweat profusely.
Throughout history, civilizations developed and expanded adjacent to sources of water. It was also the cause for many historic wars.