Why Is Skin Pigmentation More Common In Hot Weather? Hot weather often causes pigmentation, tanning, and patchy skin tone in many people. The primary reason behind increased pigmentation during summer is excessive exposure to harmful sun rays. During summer, the skin produces more melanin to protect itself from sun damage, https://nikitapatel.mystrikingly.com/blog/why-does-skin-pigmentation-increase-in-summer/i/view_as_owner