Mill Valley weather in December (California, United States of America)
Curious about the December weather in Mill Valley? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.
In December, Mill Valley generally has moderate temperatures and heavy rainfall. Anticipate daytime temperatures around 14°C, while night temperatures can drop to 6°C. On average, December has the most moderate temperatures of the year.
Mill Valley in December usually receives heavy rainfall, averaging around 172 mm for the month. This month marks the year's heaviest rainfall, with frequent intense rainshowers. It's advisable to be prepared with appropriate rain gear to stay dry. When we look at the climate data from the last 30 years, we can expect around 13 days of rain.
The area enjoys a balanced 160 hours of sunlight. Ensuring it's neither too overcast nor too sunny.
If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Mill Valley. May, June, July, August, September and October generally stand out with the best circumstances. While January, February and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Mill Valley climate page with graphs.
Mill Valley, monthly averages in December
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.
So, what should you wear in Mill Valley 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.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 Mill Valley.
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.