Currency and costs Puerto Rico uses the U.S. dollar. Credit cards are accepted almost everywhere in tourist areas, and ATMs are widely available. Prices are broadly comparable to the U.S. mainland, though San Juan hotels and restaurants in tourist zones can be expensive. Away from the capital, costs come down considerably.
Language Spanish is the dominant language. English is widely spoken in San Juan, resort areas, and most places that deal regularly with tourists. Outside these zones, Spanish is essential. Even a few words of Spanish go a long way.
Entry requirements U.S. citizens and permanent residents do not need a passport to travel from the mainland — Puerto Rico is domestic travel. International visitors follow standard U.S. entry requirements, including ESTA for eligible nationalities.
Safety Puerto Rico is generally safe in tourist areas, but exercise normal city caution in San Juan, particularly in less-lit areas after dark. Don't leave valuables visible in rental cars. The areas of Old San Juan, Condado, and Isla Verde are well-patrolled and comfortable to walk at night, though some neighborhoods just outside these zones are not.
Health Tap water is safe to drink throughout the island. Healthcare facilities meet U.S. standards. Mosquitoes can carry dengue fever and, less commonly, Zika; use insect repellent with DEET, especially in the rainy season. Avoid swimming in freshwater rivers and lakes due to the risk of leptospirosis and schistosomiasis.
Hurricane preparedness The hurricane season runs June through November. Travel insurance that covers trip cancellation and interruption is strongly advisable if traveling in this period.
Electricity and phones Standard U.S. 110V plugs. U.S. mobile phone plans work here without roaming charges. Emergency number is 911.
Time zone Puerto Rico is on Atlantic Standard Time (UTC-4) and does not observe daylight saving time, so it's the same as U.S. Eastern time in summer, one hour ahead in winter.