average weather in cayucos ca by month
The highest monthly average temperature in Cayucos for August is 64 degrees. The lowest monthly average temperature in Cayucos for December is 51 degrees. The most monthly precipitation in Cayucos occurs in January with 4.9 inches. The air quality index in Cayucos is 12% worse than the national average. The pollution index in Cayucos is 10% worse than the national average.