San Juan, Puerto Rico
San Juan usually means warm, humid racing with coastal wind and sun exposure in play.
Typical race window
Monthly climate normal from 2016-2025 archive data.
22°C-29°C
23 km/h
35 km/h
53%
A typical day in March averages 2.0 mm of precipitation, with average gusts around 41 km/h. Treat this as planning context, not a live forecast.
Jan
28°C
Feb
28°C
Mar
29°C
Apr
29°C
May
30°C
Jun
31°C
Jul
31°C
Aug
31°C
Sep
31°C
Oct
30°C
Nov
29°C
Dec
28°C
Protected water can still be affected by wind chop and local marine guidance.
Wind and heat build across the bike, especially on exposed sections.
The run is often heat- and humidity-limited, so timing and cooling matter.
Live race-day forecast
This race page stays evergreen. For date, start time and expected segment durations, open the race-day planner with San Juan, Puerto Rico prefilled.