Holy crap! I'm glad I found this thread, the athlete guide they emailed out the other day said to expect low 60's water temp - a far cry from 48-49! Forget my full wetsuit...gonna pull out the scuba dry suit. The coldest I've swam in is upper 50's for an olympic distance. If it's upper 40's should I be considering a neoprene cap/booties??
I swam up there this weekend as well. This time with booties and a neoprene swim cap. Not sure if it was the extra equipment, the sunny weather, or if the water temperature actually got that much warmer, but it was MUCH more comfortable. Swam an easy mile or so and enjoyed the sun. Tons of boats though so that was kind of a bummer.