The swim is almost entirely protected in the lagoon area. There may be some mild push one way or the other depending on tidal level. The stretch leaving the lagoon, under the bridge, to the swim exit is a bit more exposed to wind. I am not a strong swimmer and came in around my standard non-wetsuit 70.3 swim.

It can be fairly windy along the coastline. I rode 808/Super9 Zipps and don't recall getting pushed around much. More headwind/tailwind type exposure. They changed the course that year so it didn't go as far south for the turnaround leg. This made for more back and forth along the coast. On race day it was tailwind out and headwind back. Tough way to finish the ride back into Old San Juan! Still a fast course. Save something for the run! It is hot. T2 in the stadium is scorching too.

I raced it in 2014 and they held it in April. So not sure how March conditions may differ.