We had the winter solstice a few weeks ago in Sydney. After that (21st June) the weather immediately cooled down after a very mild start to our winter here. Speaking of the winter solstice, this photo (taken in the northern hemisphere) shows the transit of Venus over a year. The top is the summer solstice and the bottom is the winter solstice and the point where the paths cross over is the equinox. Isn't it lovely? It's like a beautiful twinkly necklace in the sky.
Image from here.