Preparation for the exam: Write an infornal reply to this letter

Thanks for inviting me to stay with you when I visit your country next month.
I'm not sure how to get to your apartment from the airport. Could you write back giving me some basic instructions? What would be the best method of transport for me? I'd prefer one that isn't too expensive!
Just one other thing - what will the weather be like when I get there? (Just so I'll know what clothes to pack!)