ClimateForecastJanuaryFebruary >>

Mill Valley weather in January (California, United States of America)

Will it be warm or cold in Mill Valley this January? Here's what you need to know about the weather for the month.

Temperatures

In January, Mill Valley usually has moderate temperatures and high rainfall. Anticipate daytime temperatures around 14°C, while night temperatures can drop to 6°C.

Precipitation

Mill Valley in January usually receives high rainfall, averaging around 122 mm for the month. Looking at the last 30 years, the data shows about 9 days with rain.

Average sunshine

Expect a moderate amount of sunlight, with approximately 186 hours. This means a pleasant mix of sun and clouds.

If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit Mill Valley. May, June, July, August, September and October typically offer the most optimal weather. In contrast, January, February and December tend to have 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 January

Min TemperatureMin Temperature 6°C  
Max TemperatureMax Temperature 14°C  
Chance of RainChance of Rain 30%  
PrecipitationPrecipitation 122 mm  
Rainy daysRainy days 9 days  
HumidityHumidity 80% *  
SunshineSunshine 186 hours *  
Percentage SunshinePercentage Sunshine 61% *  
Data from: San Francisco, the United States of America (35 KM, 21 Miles).

Where to go in the United States of America in January

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

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.

Swimming
5/10
Cycling
5/10
Walking
5/10
Camping
3/10
Outdoor sports
9/10

Interested in more climate information?

This site 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 travel conditions. Find out where to go with our weather planner.