Shore diving beautiful SoCal in a drysuit can be cruel.
It was February 5th today, with 80F temps under a blazing sun with no wind and no clouds.
No complaints from me... on land.
Underwater? We can have 50F to 53F below the thermocline all year.
This is drysuit country for our long wonderful dives.
But on hot days, once I seal the dry suit, hoist the hp130, don the Otter Bay hood, click the drygloves closed, and cross the sand or rocks with the 44 lb MiniCuda on my shoulder under the blazing sun.... well, I'm melting.
Once in the water, perspiration-soaked undergarments and cold water is NOT a good mix.
I've been cold underwater many times on the hottest days of the year, even with wicking layers.
I just steam up everything on the march to the sea.
But lately I've found a good solution:
Vent the steam, and replace it with cool dry nitrox.
Once in the water, I overfill the drysuit while floating prone on the surface, then completely empty the suit by going vertical.
Then I do it again.
Out with all that high-humidity self-generated swamp air.
In with the super-dry cool gas from my cylinder.
Since I've been doing this I'm warmer and more comfortable underwater than I remember on prior super-hot days.
One of those "little" things that's made a big difference.
What tips and tricks have you found for managing your drysuit on hot days when diving in cool water?