A great RV gadget is an RV awning sun screen shade kit. It is a screen that attaches to the end of the awning and down to the ground. These provide a nice shady spot outside the RV and give a little more foot space to hang out in.
Some RVs will have ceiling fans. It is okay to use these while boondocking because they use very little battery power and make a drastic difference in the inside temperature of the RV. DO conserve power by only turning them on during the hottest part of the day. To get the best airflow, turn one on the “in” position and the other on the “out” position.
Using the RV stove is going to heat up the RV a great deal. Plan to prepare cool summer salads and cook over the camp fire or on an outdoor grill for most meals to keep the heat outside.
Part of keeping cool is taking care of your body temperature as well as the RV temperature. The best way to lower your body temp is internally by drinking lots of fluids. Continuously sip on plain water and sports drinks or coconut water to keep yourself hydrated and to help handle the heat.
Also avoid activities that require a lot of physical exertion. Limit that hike or bike ride to the morning or at dusk when it is cooler out.
Summertime RV boondocking can be amazing with the right preparedness. Make sure to check the weather and plan ahead so you can enjoy your trip all the more.