Golden Retrievers shed a lot of hair all year round. It is especially important to brush and remove all the excess hair that is ready to shed in summer time. This is because of the heat and how thick the Retrievers fur can be. Golden Retrievers can be quite messy also when it comes to shedding, this is because they seem to shed a lot. This can result in the owner of the retriever having to hoover once or more times a day to tidy up the mess from the shedding.
Link here is a video of a Golden Retriever being brushed due to shedding.
Also in the video it give tips and help on how to take care of your Golden Retriever when it comes to shedding. There are different types of brushes you can buy that can help.