While there are certainly many ways to provide some extra shade in your garden during the hotter seasons, not all of those methods are equally good, and if you live somewhere with a particularly bad weather, you may want to consider investigating some of the better and more prominent options on the market.
Shade sails can be a particularly good solution if you don't want to spend too much money and you also desire some degree of flexibility. Meaning that you can easily take down the installation when it gets colder so you can still enjoy some sunlight in your garden when you need it.
It's also a very popular idea to use shade sails for covering a swimming pool, as they can provide good protection against evaporation, lowering the costs of your pool maintenance. Of course how well this is going to work for you depends entirely on the specifics of your pool, and this isn't universally beneficial - but in many cases you can gain quite a lot from putting up a shade sail over your pool. And when you want to have a nice party in that pool later on, you can always remove the shade sail quickly.
If you've never had any kind of covers installed in your garden before, you might need to invest in some additional small structures to support your shade sails. And even though you might be able to install them yourself, you should probably best leave that job to the company that's selling you the shade sails in the first place. This will not only ensure that the job gets done quicker and more efficiently, but it will also give you a better standing on your warranty, as this can often be affected by any attempts to do the installation yourself.
And while we're on the subject of the warranty, make sure you're familiar with how much it covers you in the event that something breaks down while you're taking down the shade sails, or when putting them back up later on. This might not always be covered by your warranty by default, so you should specifically discuss that with the company if you have any questions. Although, in most cases the installation of shade sails is performed in such a way that it's easy for the user to do that kind of maintenance work on them later on.
You might also want to experiment with different styles if you find that you enjoy how those shade sails look in your garden. Companies that manufacture them can usually offer you a nice range of colors and even shapes, although the base material would usually be the same across the board. You may even buy a few different shade sails that you can easily change when you're in a different mood, but don't go overboard with this because it can become a bit of an expensive hobby. Plus, shade sails can take up a surprisingly lot of space when you suddenly have too many of them.