Air conditioning for off grid camping

Portable like the Yeti line sold for off-grid recreational use?

There is a scale problem, e.g. the largest Yeti stores 1200 watt-hours (like a single large RV storage battery) which might be enough for 1-hour run-time on a smaller RV air conditioner (except that you aren't really supposed to run the battery all the way down). Then you are looking at 27-54 hours recharge time from the 90 watt solar panel. So portables are short of the A/C's power needs by a factor of maybe 8 to 10 in moderate climates, much more in severe heat climates.

People do run A/C from mostly solar, in all-electric motorcoaches with 8-12 KWH storage capacity, charging from 500-2000 watts of solar panels. That's a lot of battery weight to carry, although lithium battery technologies can bring the weight down at a price. In case solar can't keep up, these coaches can recharge or power equipment from a generator, or sometimes a large alternator on their primary engine. I think RoadTrek has scaled this down to a van size motorhome with 9.6 KWH storage, 240 watts of solar, and charging from the engine.

No. Since a/c draws about 1500w, which would be about 12 panels, there are few practical choices for anything solar.