


Puerto Rico is the easternmost of the Greater Antilles, surrounded by the Atlantic Ocean to the north and the Caribbean Sea to the south. The island's terrain ranges from palm-lined beaches on four coastlines, to rugged mountain ranges that occupy three-quarters of the landscape, to gently rolling hills, waterfalls, tropical forests, and even dry desert-like areas. There are also two bioluminescent bays where people and fish shine at night.
Puerto Rico has one of the most unvarying climates in the world. Tropical temperatures average a pleasant 80°F with year-round breezes. In the mountains, it is about 10°F cooler during both summer and winter. The US Weather Bureau has never recorded temperatures in San Juan below 70°F! Average monthly rainfall is 7 inches, peaking in August. The heart of hurricane season lasts from late August to early November, though strikes are rare and there is plenty of advance notice to prepare. When threatened by a hurricane strike, one should expect a 2-day displacement from evacuation to safe return.