If you planning to travel to Port of Castelsardo, Castelsardo, Italy, 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 6:00 AM. The temperature feels like 63 with a humidity level of 82 so dress accordingly. Cloud coverage is 0 percent with visibility at 14.9 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 4 MPH. At the end of the day don’t miss the sunset at 4:17 PM.