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 12:07 PM. The temperature feels like 74 with a humidity level of 63 so dress accordingly. Cloud coverage is 48 percent with visibility at 12.9 percent. Today’s UV index is 6, don’t forget the sunscreen if you need it! Today’s winds are traveling east-northeast at a speed of 11 MPH. At the end of the day don’t miss the sunset at 1:01 AM.