We went in April this year and the hottest it got to in Rajasthan was 42 degrees! But it was fine, the car had great AC and we had plenty of water. All the hotels we're cool and had AC. The tour is taken at your pace so no worries there. I'd advise you take a hat and loose clothing especially when in Ranthambore as you'll be in the jeep the whole day. One thing I would advise however is that you don't go any later than April as it then gets really hot! Enjoy.

It’s a fabulous tour but does involve some flat walking. It depends on what “ can’t walk very well means”. In Agra you will be dropped off close to the entrance to the Taj but probably have to walk 200 yards to get to it ( and 200 more back) there’s about 20 stair steps involved. Agra Fort requires about 2 blocks of gradual uphill walking to get in. In Ranthambhore there will be flat walking to your accommodations most likely and you’ll have to be able to get into the back of an open air Jeep. In Jaipur you’ll walk around town in order to see the sights. I’m guessing it was about 7-8 city blocks but flat. We rode an elephant up to the fort the last day. Just sat down on platform and held on. A few steps involved on each end. Possibly car could take you up to back of fort which is how we left but you’d walk a couple of blocks slightly uphill in that case. Inside fort you could see some of it without climbing but i’d Hate to miss the interior which requires about 20 steps, if you had access to a portable/travel wheelchair it would make things easier endurance wise. If you can climb stairs slowly you’ll see most of it. By the way, i’m a nurse and have traveled with a wheelchair bound mother before.