It is rainy season here in the Philippines already and it will not be possible for you to have a tan when there is no sun. You can get sun-tanned skin if you visit the beach and lay there for an hour or two to have that tanned skin. But it is hard to have a perfect sun-tan look skin so going to the saloon is a good choice if you want to have that tanned skin.
The tanning store sells spray-on tans and machines that can be use in saloons and spas. If you don’t have the time to go and visit a saloon, you can buy tanning sprays in online stores and apply it yourself.