If you planning to travel to Westfield Horton Plaza, San Diego, California, 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 1:15 PM. The temperature feels like 77 with a humidity level of 74 so dress accordingly. Cloud coverage is 14 percent with visibility at 13 percent. Today’s UV index is 9, don’t forget the sunscreen if you need it! Today’s winds are traveling northwest at a speed of 6 MPH. At the end of the day don’t miss the sunset at 2:26 AM.