The weather in Egypt in June can vary like the UK and be the hottest month of the year or still be relatively mild. In 2005 and 2006 June was the hottest month of the year in Egypt with July and August being cooler, but in general June is very pleasant and a good month to visit Egypt if you like sun, sun and more sun.
A trip to Egypt will never disappoint in any month of the year but Egypt In June has a great deal to offer. So what are you waiting for? Start looking for your next holiday now and maybe you will spending your next holiday in Egypt In June!