The weather in Newcastle, Australia

Newcastle? The one in New South Wales? It's about 20 degrees during the day and 13 degrees at night. It's just cold in the morning and evening, but it's fine during the day.

I was in Brisbane around 22: 00 during the day, and it's 12 degrees this evening. I'm in my room, wearing pants and vest. Now if I go out at 3 pm, I can wear a coat. If I am in the sun during the day, my short sleeves are completely fine, even very hot (in winter).