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San Juan is warm and humid essentially year-round, with the biggest packing consideration being rain protection and sun/bug defense rather than temperature swings. Beyond the standard travel basics, prioritize:
San Juan has a tropical climate — warm and humid essentially year-round, with the biggest packing consideration being rain protection and sun/bug defense rather than temperature swings.
Beyond the usual documents and toiletries, prioritize: lightweight, breathable clothing, swimwear, packable rain jacket or poncho, sandals or water shoes.
Rather than one outfit per day, plan on roughly one top per 2 days and one bottom per 3 days, plus laundry if your trip runs past a week — the calculator above scales this automatically to your exact trip length.
Yes — swap beach/activity gear for business attire, a laptop and charger, and a notebook, while keeping the same tropical-climate essentials underneath.