Interesting to hear posts with opposite observations. "It is too hot." It is not too hot."
I have a Clam. It is without question too hot in low wind situations. That could be in heavy forest or just a calm sunny day. It takes a stiff breeze to force enough air through to cool on a hot day.
I have had other screen tents that were not as bad temperature wise. The other tents needed to be tied down with ropes and stake loops at the bottom. The Clam can be anchored using just the stake loops around the bottom.
Ropes are provided with the Clam, but I have yet to need them.
The Clam is heavy like the old canvas ones. But it holds its own against moderate winds. It is hot in the sun in low wind conditions.
I wish you good luck and happy trails ahead!