To see summer in a dream refers to sudden and beautiful changes.
To see that the summer comes although the current season isn't summer in your dream may represent that you will reach a person whom you dream as soon as possible, you will get a staff which you want to buy later earlier.
To dream that you feel very hot in summer signifies that your expectancies will occur as soon as possible.
To see that the season is summer and the current season is summer in your dream implies that you will have positive updates regarding an attempt or a decision you have taken recently.
To see bad incidents in summer in your dream may suggest that you should spend times with people who are close to you in order not to lose these people. If you see daily or happy incidents in summer in your dream, it refers to good updates which you will have without Andy effort.