We got the fog also, but they often take pretty pics only a few weeks after the rain, the place is pretty for about 8-14 weeks, then everything turns brown........except for the 12 million acres of infernal yellow star thistle
Irrigation with left over tank water is a what I always try to add into folk's systems. It's the prefect source. It's not that much water relative to the usage, which tends to be very poor still here in CA. Unless you have like 300-500 gal of tank or more, it's not that many cubic ft. Watering those lawns is the worst thing, then they never use the mulch/compost, they cart that off at a high expense, some add ferts to their lawns, otherwise the soil gets depleted.
So you are basically an irrigating grass farmer
I'm not a big fan of the grass lawn.
Takes a lot of work too, have to buy a mower.
Irrigation, overall a PITA.
Some claim it's for their kids.
My son and his cousins live in areas without grass, we call it native forest

Their friends and their parents are jealous, not sad for them.
Lawns can be found at parks and sports fields.
Having been all over the UK, it looked pretty darn green when I was there.
Foggy. Drizzly. That was a long time ago (1980).
But so is San Francisco and it's pretty dry here. So the myth may be true.
The fog is great here, cools things down.
Regards,
Tom Barr