If you planning to travel to Port Isabel Lighthouse, Port Isabel, Texas, 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 1:12 PM. The temperature feels like 73.5 with a humidity level of 85 so dress accordingly. Cloud coverage is 33 percent with visibility at 9.8 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 12 MPH. At the end of the day don’t miss the sunset at 11:44 PM.