Yeah this mild Aug has been great. I'm inland so we have been in the 90s. Even with a fan going through out the day and keeping the GH door open it still gets pretty hot and humid in there but mmj handles it well. You're right about the filtered sun in the past when I had the greenhouse where it got direct sun for most of the days the plants would be obviously stressed by the heat. I think what is most important in dealing with the heat is to make sure your plants are at least 2' before the heat really kicks in.