Kate Middleton Shows Off New Blonde Hair While Out With Prince William

Princess Kate Middleton is ready to show the world her new blonde hair!

After teasing a hair transformation during brief sightings over the summer, Kate, 43, officially stepped out with her new look on Thursday, September 4, as she and husband Prince William took in the newly renovated gardens at the National History Museum in London.

The Princess of Wales’ honey blonde locks were on full display as she wore her hair down for the couple’s first royal engagement after their summer break. Kate looked effortlessly chic in a gray blazer, white shirt and black pants.

William, also 43, meanwhile, wore a dark suit and a light blue shirt for the occasion.

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Over the summer, Kate has been spotted with noticeably lighter hair than her usual dark brown tresses, including at the Wimbledon tennis championships in London in July.

On August 24, Kate’s hair appeared even lighter when she stepped out with William and their three children — Prince George, 12, Princess Charlotte, 10 and Prince Louis, 7 — for a church service in Crathie Kirk, near Balmoral Castle in Scotland.

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Hairstylist Sarah Gadsdon told the Daily Mail that the royal’s lighter hair color may be, in part, the result of spending time under the Greek sun this summer.

“After a sun-soaked holiday in Greece, Kate returned not only with a refreshed spirit but also with naturally lightened hair,” the stylist said. “The combination of sea air, sunshine, and saltwater had gently lifted her hair to a softer shade — creating the perfect starting point for her next salon visit.”

Gadsdon said the lighter tone could also be an effective way to conceal gray hairs as the princess gets older.

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“She’s made a thoughtful shift in her hair color strategy. Rather than covering grays with darker dyes — which often require more frequent maintenance — she’s opted for a lighter, blended tone,” the hairstylist said. “This approach not only gives her hair a softer, more natural appearance but also helps camouflage grays in a subtle, low-maintenance way.”

Another hairstylist, Jennifer Korab, for one, is impressed by Kate’s hair transformation over the last few months. “This blend of brunette and blonde tones is one of the biggest trends right now because it adds soft dimension, a sunlit glow, and natural brightness, perfect for the warmer months,” Korab told Marie Claire, adding that the princess looked “polished, sophisticated, and effortlessly modern.”