In Walnut Creek, when the temperature hits 97 degrees in the middle of the day, it's a no-brainer. The local pool calls.
"It's refreshing and it's hot out here and your feet start to burn," said Daly City resident Ariana Cordoba.
The icing on the cake? Free slurpees from 7-Eleven. The giveaway was part of their 85th anniversary celebration.
Despite the high temperatures, the local youth baseball clubs, the Concord Zephyrs and the Walnut Creek Crawdads, were out practicing since the morning.
"I love being out here," said Patrick Guidi of the Crawdads. "I'd rather be here than anywhere else, especially out in the heat. It kind of adds to it, you know?"
There was little relief for a paving crew, who anticipating a hot day, asked the city of Walnut Creek to start work two hours before their regular time. They began at 5 a.m. with hopes of wrapping up early.
"We have to drink a lot of water, juice, Gatorade, a lot of water because it's hot," said Jose Frias with Bay Cities Paving and Grading.
With the prospect of several East Bay cities hitting triple digit temperatures by the afternoon, PG&E sent out alerts asking customers to conserve energy in their entire service area, from Bakersfield to Eureka.