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 12:22 PM. The temperature feels like 78.8 with a humidity level of 74 so dress accordingly. Cloud coverage is 62 percent with visibility at 12.7 percent. Today’s UV index is 8, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 11 MPH. At the end of the day don’t miss the sunset at 12:52 AM.