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 7:52 AM. The temperature feels like 47.85 with a humidity level of 78 so dress accordingly. Cloud coverage is 84 percent with visibility at 5 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 14 MPH. At the end of the day don’t miss the sunset at 5:42 PM.