Half Moon Bay weather in December (California, United States of America)
Curious about the December weather in Half Moon Bay? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.
In December, Half Moon Bay generally has moderate temperatures and high rainfall. Daytime temperatures hover around 15°C, while nights can cool down to about 6°C. This time of year is characterized by the most temperate climate of all the months.
Half Moon Bay in December usually receives high rainfall, averaging around 144 mm for the month. It is the wettest month of the year, so an umbrella might come in handy. Based on our climate data of the past 30 years, about 14 days of rain are anticipated.
The city usually sees around 160 hours of sunlight, indicating a moderately sunny period.
If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Half Moon Bay. May, June, July, August, September and October generally stand out with the best circumstances. While February, March and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Half Moon Bay climate page with graphs.
Half Moon Bay, monthly averages in December
Min Temperature
6°C
Max Temperature
15°C
Water Temperature
13°C *
Chance of Rain
47%
Precipitation
144 mm
Rainy days
14 days
Humidity
78% *
Windspeed
11 km/h *
Sunshine
160 hours *
Percentage Sunshine
54% *
Where to go in the United States of America in December
Find out more about the weather in the United States of America in December and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Half Moon Bay in December?
Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay. With a water temperature of around 13°C there is no need to bring your swimwear.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in December.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Half Moon Bay.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
