Australians have enjoyed relatively mild weather across the nation on Christmas Day, the first celebrated under the shadow of COVID-19. Most major capital cities were overcast with peak temperatures in the high teens to mid-20s, barring Perth which is in for a scorching 37C. Family gatherings were restricted in Sydney, where the pandemic’s impact is being felt the hardest this year. Some of the harshest rules were in the city’s northern beaches area, where a virus cluster on December 25 jumped to 108 infections. “I don’t think anyone is having a normal Christmas across NSW,” Premier Gladys Berejiklian said on Friday. Meanwhile, thousands of others are spending Christmas in hotel quarantine or home isolation. Despite this, Prime Minister Scott Morrison said in his Christmas message that Australia had much to be grateful for despite the pandemic, which has killed 908 people. “Australians are amazing people with an amazing spirit. And …