Average Monthly Sunshine in Half Moon Bay (CA)

The graphs on this page shows the average number of hours per month and per day that Half Moon Bay receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Seasonal sunshine in Half Moon Bay varies. It peaks at 324 hours in May and drops to 160 hours in December. The total annual amount of sun is 3072 hours.

Daily hours of sunshine

In Half Moon Bay, summer days are longer and more sunny, with daily sunshine hours peaking at 10.8 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 5.3 hours.

Half Moon Bay’s total hours of sunshine compared to other major cities

Half Moon Bay enjoys an average of 3072 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

The city of Rome, Italy, experiences 2470 hours of sunshine annually, adding to its charm as a year-round tourist destination.

In Chicago, USA, the annual sunshine averages 2520 hours, contributing to its humid continental climate.

Stockholm, Sweden, receives approximately 1907 hours of sunshine annually.

In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.

Other climate information

December, Half Moon Bay’s wettest month, receives 5.6 mm of rainfall and has a maximum daytime temperature of 15°C. During the driest month July you can expect a temperature of 21°C.

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Half Moon Bay Precipitation page.