If you planning to travel to Sao Martinho do Porto Beach, Caldas da Rainha, Portugal, 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 5:54 AM. The temperature feels like 67.2 with a humidity level of 87 so dress accordingly. Cloud coverage is 25 percent with visibility at 12.9 percent. Today’s UV index is 9, don’t forget the sunscreen if you need it! Today’s winds are traveling north-northwest at a speed of 8 MPH. At the end of the day don’t miss the sunset at 7:21 PM.