Half Moon Bay Weather in November

What's the weather like in Half Moon Bay (California) in November 2025?

The climate in Half Moon Bay during November can be summarized as mild and damp.

November is in the fall / autumn in Half Moon Bay and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 8°C (46°F) is normal.

Half Moon Bay weather averages (imperial / metric)
Daytime temperature 16.9°C 62.4°F
Nightly temperature 7.5°C 45.5°F
Average temperature 12.2°C 54°F
Daily sunshine 6.4 hrs
Avg rainfall 102 mm 4 ins
Rainy days 8 days
Sea temperature 13.6°C 56.4°F
Humidity 76%
Windspeed 13kph 8 mph

On average November is the 5th wettest month of the year in Half Moon Bay with around 102mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.4 hours of sunshine per day.

November temperatures in Half Moon Bay

Half Moon Bay average temperature in November

November rainfall

Half Moon Bay average rain in November

November hourly sunshine

Half Moon Bay average rain in November

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Half Moon Bay in November 2025.