If you planning to travel to La Fortaleza - Palacio de Santa Catalina, San Juan, Puerto Rico, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 10:47 AM. The temperature feels like 83.4 with a humidity level of 84 so dress accordingly. Cloud coverage is 56 percent with visibility at 8.9 percent. Today’s UV index is 6, don’t forget the sunscreen if you need it! Today’s winds are traveling east-southeast at a speed of 6 MPH. At the end of the day don’t miss the sunset at 9:53 PM.