Your roof should be protected, and a large part of the work is being done by your gutters and downspouts. They are there to make sure that water doesn’t pool up on your roof and that it is safely diverted away from your home. Unfortunately, they are also prone to getting clogged up with leaves and other debris, and this could lead to them doing more harm than good. That puts the job in your hands to ensure that water flows freely. When heading into a rainy period, you might want to check that everything flows freely.
You should also make sure that the water coming out of the downspouts is directed away from your home. There are downspout extensions that will help you to do that.
To prevent leaves and branches from collecting in the gutter there are some covers that are supposed to work by blocking them, but this could lead to water just bypassing the gutter instead.