Try using a small fan to blow into the outside vents to improve circulation through the cooling coils. If it helps, then consider adding fans designed for that purpose. With outside temps that high, there is just not as much cooling available. However, I do think that yours is higher than I would be comfortable with. Might be a good idea to brace your pocketbook. With ours parked at that temperature, especially with full sun on that side. we have seen out have to work hard to maintain inside temps in the low 40's.