Why you should wear sunscreen even on cloudy days? Explained

Think you can skip sunscreen because it's cloudy? Think again. Most harmful UV rays still reach your skin through clouds, making daily sun protection essential even when the sun isn't visible.

Post Published By: Ayushi Bisht

Updated : 14 July 2026, 2:04 PM IST

Sunscreen even on cloudy days (Img: Dynamite News)

New Delhi: Many people skip sunscreen when the sky is overcast, assuming clouds block harmful UV rays. However, dermatologists say that misconception can leave your skin vulnerable to damage.

Clouds Don't Block Most UV Rays

While clouds reduce visible sunlight, up to 80% of ultraviolet (UV) rays can still penetrate cloud cover. That means your skin can still be exposed to UV radiation even when it doesn't feel hot or sunny.

Also Read: UV Index Hits Extreme Levels: Why Daily Sunscreen Use Is No Longer Optional? Explained

Protection Against Skin Damage

UV rays are responsible for sunburn, premature skin ageing and pigmentation. Long-term exposure can also increase the risk of skin cancer. Daily sunscreen helps create a protective barrier against these harmful effects.

Prevents Premature Ageing

UVA rays, which are present throughout the year, penetrate deep into the skin and contribute to wrinkles, fine lines and loss of elasticity. Since UVA rays pass through clouds and even glass, sunscreen is essential indoors near windows as well.

Reduces Pigmentation and Tanning

People with acne marks, melasma or uneven skin tone may notice worsening pigmentation due to UV exposure—even on cloudy days. Regular sunscreen use helps prevent dark spots from becoming more noticeable.

Also Read: Key tips to choose and apply sunscreen correctly for full UV protection

How to Choose the Right Sunscreen

• Use a broad-spectrum sunscreen that protects against both UVA and UVB rays.
• Choose SPF 30 or higher for everyday use.
• Apply sunscreen 15–20 minutes before going outdoors.
• Reapply every two hours, or sooner if you're sweating or swimming.

Cloudy weather doesn't mean you're protected from UV radiation. Making sunscreen part of your daily skincare routine can help prevent sun damage, reduce premature ageing and protect your skin's long-term health.