Why Does Pigmentation Become Worse During Summer? 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. The skin increases melanin production in summer as a protective response, resulting in tanning and https://wellnesswisehealthcare.blogspot.com/2026/05/why-does-skin-pigmentation-increase-in.html