The warmer the weather, the less clothes you wear. The less clothes you wear, the more skin you show. The more skin you show, the more tattoos you show. The more tattoos show, the more they can get faded by the sun.
You spend a lot of money on your tattoo or tattoos and you want them to last for a long, long time — for that to happen, you need to start at the beginning. The most critical phase in your young tattoo’s life is the first few weeks and ensuring proper healing, keeping it clean with an anti-bacterial soap and well moisturized with a dye-free, fragrance-free lotion. Fragrances and dyes contain volatile and solvent chemicals and these chemicals can cause irritation and impede skin healing.
Sun-fading is another factor that jeopardizes tattoo longevity. UVA, UVB and IR rays will damage healthy skin and wreak havoc on skin that has been tattooed so using a good sunscreen is of the utmost importance. Bleach-free skin brighteners are very popular but only the right kind will save your tattoo — make sure yours stops the amino acid tyrosine (it makes up melanin which gives you the colour of your skin, the more melanin, the darker the skin) from being produced. The other kind is a desquimator, which is designed to flake off skin — they work great on the skin but all they do is remove your epidermal skin and doesn’t stop the tan from happening.
Realistically, protecting your tattoo is as easy as protecting your skin. Apply sunscreen with a decent amount of SPF and reapply as per it’s instructions. If the sunscreen is sweat and waterproof, even better as you would not have to reapply after being super active or taking a swim. And there’s only so much sun a human being can handle in a day so use your head and don’t spend all day in the sun.