Plus size summer clothes can be a real problem. In almost all cases they are the wrong color and the wrong style for a larger woman. This makes it really hard to find something that you look good in. the best you can do is shop around and see if you can find something that will look good. As long as you keep a few basic rules about what you should wear if you are a larger lady you should be fine.
The biggest problem with buying plus size summer clothes is that you will have a hard time finding something that is the right color for you. In most cases if you wear plus size clothes you are going to want to stick to the darker colors.
This is a problem with summer clothes however since they are usually a light color. Unfortunately light color clothes are going to create areas of shadow that make you look bigger than you are. This is something to be avoided but it does create a problem since dark colors are not widely worn during the summer.
The other big issue that you are going to have with plus size summer fashions is that they are usually loosened fitted. In general when you wear summer garments you will go with loosened fitted ones for comfort. Most larger women prefer loosened fitted garments anyway since they are trying to hide their shape.
This is actually a mistake; loosened fitted clothes just make you look big. You really want to wear tight, form fitted clothes. Unfortunately these are not widely available in summer clothes. This combined with the wrong colors and the fact that large women need to stay away from large prints really limits the options.