July - the month following June and preceding August

Aug, August - the month following July and preceding September

June 21, midsummer, summer solstice - June 21, when the sun is at its northernmost point

time of year, season - one of the natural periods into which the year is divided by the equinoxes and solstices or atmospheric conditions; "the regular sequence of the seasons"

canicular days, canicule, dog days - the hot period between early July and early September; a period of inactivity

spend, pass - pass (time) in a specific way; "How are you spending your summer vacation?"