President Barack Obama and his family left a wintery Washington D.C. today for their annual Christmas vacation in Hawaii.

The Obamas are expected to arrive on Air Force One this afternoon and stay in a Kailua beachfront rental home for a week and a half.

The trip was delayed about a day so that the president was in Washington for the Senate vote passing a health care bill this morning.

The web site Politico.com reported today that the Obamas will be accompanied by his sister Maya Soetoro-Ng and her family, who moved to the Washington area from Honolulu earlier this year. Other friends who will be spending Christmas with the Obamas include Valerie Jarrett, Marty Nesbitt and his wife, Anita, Eric Whitaker and his wife, Cheryl, as well as the families of Obama's childhood friends Mike Ramos and Greg Orme, according to Politico.com.

Christmas in Hawaii is an annual tradition for the Obama family. Obama was born here and spent much of his childhood in Hawaii.

When the Obamas left Washington today, the temperature was in the 30s. They will arrive this afternoon to 80-degree, sunny weather.