I was walking around the late summer Tbilisi the other day. It was my favourite kind of weather - the early autumn onset was showing. Shadows became a little darker, the light a tad warmer, and the temperature dropped to below 70°F (20°C (293°K)), which has the same effect here as in SoCal - people start wearing puffer jackets and avoid going outside. It was a rare occasion for me, too, just walking around central Tbilisi and running small errands with no care in the world.