San Juan, Puerto Rico
San Juan usually means warm, humid racing with coastal wind and sun exposure in play.
Typical race window
Climate normals are temporarily unavailable. Use the swim, bike and run notes below as the evergreen course-weather read, then build a race-day forecast once your date enters the live forecast window.
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.