San Juan pairs a walled 500-year-old colonial old town with resort beaches and the only tropical rainforest in the US National Forest system just outside city limits. No passport or currency exchange needed for US travelers, which keeps the logistics simple.
Month by month
Best: January, February, March, April, December
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Avoid Poor OK Good Excellent Peak
Worth avoiding: August, September.
How long to stay
4–6 days is the sweet spot.
Flight time
About 3.5h from the US East Coast, 8.5h from Europe, 18h from South Asia.
Good to know
- Old San Juan's adoquine streets are pretty but rough on ankles — wear real shoes, not sandals.
- Hurricane season runs June–November, peaking August–October; the island still gets occasional power outages during storms.
- A rental car is worth it for El Yunque and Fajardo's bio bay; Old San Juan and Condado are easily walkable or a short taxi apart.
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