Well you can wear your summer clothes but like others say a coat may be a good Idea if you dont wanna turn blue
Well done on getting your Tourist Visa, from watching border force. A TV programe which shows what happens in UK Immigration at Heathrow. People can be asked some basic questions who they are meeting and purpose of visit.
Many of the people shown (of course they only show the "intresting cases") seem to be those who have stuff like CV's or work stuff on them. Therefore they are intending to work or at least it seems that way. As your here just to Chill with ya Mahal I doubt thats an issue
Hampshires a lovely part of the Uk and London well its the centre of the Universe

Have a safe journay and a lovely time in the UK
