I guess it's mainly up north, but Bangkok seems to be a little chilly these days too:

http://www.bangkokpost.com/news/general ... r-thailand

It's +11C right now at 10am, but earlier this morning I noticed it was all the way down to +7C. Granted, I would prefer this over the +44C summer days, but still, this is quite chilly for Thailand. Aside from right now, the next coldest I can remember is +16C at night.