Apparently they've just had one of their coldest winters in a long time. We got here at the end of it. I think the reason I felt the cold was because the houses are not centrally heated (in general) as they are in the USA, and not as well insulated as in SA.
We had a beautiful sunny warm day yesterday. Went all the way up to 19C! We've had warm 13C and COLD 13C all depends on whether the sun is shining and whether there's a cold wind blowing.
It is known to have 4 seasons in one day here. And they're right! The sun can be shining and it's lovely, next moment the wind blows the clouds in, it rains, gets really cold,and an hour later the sun is shining again. The rain is not hard. Just this very light drizzle, most of the time...