If you planning to travel to San Antonio SeaWorld, San Antonio, 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 12:55 PM. The temperature feels like 71.8 with a humidity level of 72 so dress accordingly. Cloud coverage is 16 percent with visibility at 13.6 percent. Today’s UV index is 5, don’t forget the sunscreen if you need it! Today’s winds are traveling east-southeast at a speed of 7 MPH. At the end of the day don’t miss the sunset at 11:39 PM.