I'll be sailing today, air temps around 70F, winds 15-25, and the water temp in the high 50's.
Here in the south, it's the 'poor man's drysuit'. Thermals, or wetsuit shorty, under a one piece spraysuit, with velcro cuffs.
The homebrew beer doesn't really help any, but I can't resist sometimes

N6.0na
sq top, and apin
#111