Winter is not time off for sunburn

When most people think of sun protection, they picture beach holidays and summer heat. But in Durban’s subtropical climate, UV exposure remains a concern even in winter.

Durban enjoys mild winters with sunny skies and daytime temperatures around 20-23°C. While the cooler weather feels comfortable, UV rays – particularly UVA – remain active year-round. These rays penetrate clouds and glass, contributing to long-term skin damage, even without the burning effect of UVB.

Durban’s location near the equator means high UV levels persist throughout winter.

UVA rays, which make up over 90% of UV radiation reaching the earth, penetrate deep into the skin and cause photoageing – wrinkles, pigmentation and loss of elasticity. They also contribute to skin cancer. People with conditions like melasma or lupus may see flare-ups, and those with darker skin are still vulnerable to pigmentation disorders without sun protection.

Winter sun safety tips

• Use sunscreen daily: Apply broad-spectrum SPF 30+ every morning, even on cloudy days. Choose a formulation that protects against both UVA and UVB rays, ideally containing ingredients such as zinc oxide or titanium dioxide. For those prone to pigmentation, sunscreens containing iron oxides may help block visible light, which can also exacerbate melasma.

• Reapply often: Every two hours if outdoors, or after sweating or wiping your face.

• Wear protective gear: Wide-brimmed hats, sunglasses and UPF-rated clothing add an important layer of defence.

• Limit midday exposure: Avoid the sun between 10am and 3pm.

• Mind the windows: UVA penetrates glass – wear sunscreen when indoors near windows or driving.

• Protect children: Their skin is more sensitive. Encourage hats, sunscreen and protective clothing.

Sun damage is cumulative and doesn’t take a winter break. Daily sun protection isn’t seasonal – it’s essential for lifelong skin health.

Dr Kiasha Govender is a specialist dermatologist at The Dermatology Emporium in Umhlanga and Tongaat.

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