Hello, not been around. Would've answered sooner but hope this can still help!
August is HOT.
It's also hurricane season so keep an eye out for storm watches.
Cabo Pulmo is solar powered so if you stay, you need to look into a place that has a generator (it will be at an extra cost) if you need devices for cool air.
You will not be able to run fans all day long as that will kill the power for the evening. The village community there is very proactive in maintaining green practices.
From last I heard, some businesses are opening up - like Cabo Pulmo Divers, Cabo Pulmo Sport Center, and others. I usually go with Pilu at Cabo Pulmo Diving.
CP is not close to anywhere and it's a drive across a bumpy dirt road for about an hour. The bumpy part used to take longer but since it's paved it's easier to bear. I usually stay for at least a week or two and I never leave town.
If *IF* the weather gets stormy, watch out. The road in *will* get flooded and you might be doing some in-river driving (hopefully not floating). Some parts of the road can and have been washed out and completely impassable in previous years unless you've got something BIG!
I am a big CP fan so I would stay there for all the days to dive. Plus, with the limited amount of people diving (my guess), you'll have an open pool for selecting dive sites. During busy season, sites and divers and boats are all limited and popular sites can be closed for several days.
I wish I was going. I cancelled my yearly November trip cuz of Covid things.