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 1:00 PM. The temperature feels like 66.55000000000001 with a humidity level of 63 so dress accordingly. Cloud coverage is 42 percent with visibility at 12.2 percent. Today’s UV index is 5, don’t forget the sunscreen if you need it! Today’s winds are traveling west-southwest at a speed of 14 MPH. At the end of the day don’t miss the sunset at 11:37 PM.