I know Israel better than Lebanon, but they are geographically so close I assume the weather is similar. There, depending upon where you are you can have Arizona style desert dry heat, or Florida style humidity. If you have a dry heat where you are, have you considered an evaporative cooler?
Here in Maryland it gets very hot and humid in the summer. An evaporative cooler would only add humidity and wouldn't do much to cool things off. I use a fan. When I don't want to go to a "family style" campground and I don't get an electric site I have an O2Cool 10" battery operated fan (8 D-cells) that works quite well and a 5" O2Cool fan (2 D-cells) which is acceptable. O2 Cool 10" Indoor/Outdoor fan
As has already been mentioned, you can make your own shade using tarps. If there aren't enough trees around to tie it to trees, several companies (including Eureka and Kelty) make tarp poles which you can use to create a freestanding tarp shade. I'm considering the Kelty Noah's Tarp and poles myself. Another similar option to bring your own shade is some kind of shade canopy like the EZ Up, Eureka Portable Canopy, Kelty Shadehouse, or possibly even a screen room that provides sun protection. I've seen people use the various sun canopies over their tents, though I'm not sure if it would really be any easier (I doubt it would be any cheaper) than the tarp and poles option.
Vehicles: 2011 Ford Fusion (for car camping), 2009 Suzuki Boulevard C50 (motorcycle camping) Tents: Boulder Creek Hunter Ridge 4 (cheap 4-season tent from Bass Pro Shops), Alps Mountaineering Vertex 4, Kelty Grand Mesa 6, Big Agnes Fairview 4