If you are growing bermudagrass, it will go off color or be semi dormant this time of the year. It is a very drought tolerant grass. ET is low this time of year in southern Cal. I have confidence fescue or bluegrass would make it too.
I read where utilities have paid out $350 million in southern Californua for people to remove turfgrass.
There will be unintended consequences down the road. Bermudagrass can handle drought. The result will be heat domes and mudslides.