I have been to the top of the Eiffel Tower several times with various friends and family, when visiting Paris, sometimes walking up the endless iron steps, sometimes flying up in the lift.
All of these visits have been accompanied by glorious days whether it was a freezing winter day or a blazingly hot summer day. So it was a wonderful change for me (not so much for first-timer E., my niece, who had no view at the top!). I loved finding the tall, gracefully sloping, skeletal tower draped in soft pearly fog.