Balance is needed.
Most days should be cloudy and overcast, with an entrenched marine layer.
But some days need to be nice and warm, with plenty of clouds to minimize the direct impact of the sun... Tuesday will be just that. Monday will actually be the worst day of the week with fully clear skies despite being 10 degrees cooler than Tuesday.
And from these warm days, we need some days with rain and convection to keep things fresh.