If you planning to travel to Alex Giualini Plaza Park, Hayward, 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 3:22 PM. The temperature feels like 51 with a humidity level of 81 so dress accordingly. Cloud coverage is 30 percent with visibility at 11.7 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 3 MPH. At the end of the day don’t miss the sunset at 12:59 AM.