The first time we were there was the middle of August, we were rained on with no clouds in the local area. Damn that was humid!
It has been humid there most every time we have been there.
My first experience in New Orleans was in 1970 when I hitch-hiked in from Florida and at 6:30 AM the bank sign read 88F. It didn’t show the humidity, but I’m sure it was over 90%. I hung out in Jackson Square until the mosquitos drove me away and I thumbed out to Baton Rogue.
Subsequent visits have been much more pleasant.
It’s worth renting a car (or potentially even a taxi). ;) Matt’s beer is just that good and the food is much better.
Don’t get me wrong. Crescent City’s beer isn’t bad. It’s solid. Old Rail’s is just at another level. And if I was stuck without a car in the Quarter, I’d probably lean towards Gordon Biersch since I prefer the food. But I would take the St Charles Streetcar to Avenue Pub over either of them. 
Definitely let me know. If we’re available, I’d gladly go meet up as well.
It’s kind of our thing.