That London Pass sounds a great deal.

I hope you have a lovely time! Where is your tour going to take you?

The home page of the BBC website gives you a weather guide with projected temperatures. The thing to remember about our weather is that it is not predictable. You really do have to be ready for torrential rain, blistering sunshine, strong wind, and probably all three on the same day. Layers are the way to go.

I was at Hever a couple of years ago and it certainly is fantastic if you are able to get there. The grounds are beautiful.