If you planning to travel to Museo de Casa Blanca, 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 10:18 AM. The temperature feels like 81.2 with a humidity level of 72 so dress accordingly. Cloud coverage is 8 percent with visibility at 13.7 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 9 MPH. At the end of the day don’t miss the sunset at 10:32 PM.