Why Is Skin Pigmentation More Common In Hot Weather? During summer, many individuals experience tanning, dark spots, uneven complexion, and skin dullness. If you are wondering, Why Does Skin Pigmentation Increase in Summer?, the main reason is increased exposure to harmful UV rays from the sun. The skin increases melanin https://sites.google.com/view/drnikita-patel/blog/why-does-skin-pigmentation-increase-in-summer