San Luis Obispo weather in December (California, United States of America)

Will it be rainy or sunny in San Luis Obispo this December? Check out this detailed guide to the month’s weather conditions.

Temperatures

The month of December in San Luis Obispo typically brings moderate temperatures and moderate rainfall. During December, the winter season is in full swing. You can expect daytime temperatures to reach around 17°C, while the nights will see a decline to about 5°C. This period usually represents the year's more moderate temperatures, but it's far from being chilly.

Precipitation

San Luis Obispo in December usually receives moderate rainfall, averaging around 98 mm for the month. This month is known for heavy rainfall, so don't forget your umbrella to stay dry. Climate data suggests that about 10 days will experience rainfall.

Average sunshine

Expect sunny days throughout the month, with an estimated 220 hours of sunshine. Making it a pleasant time to visit San Luis Obispo.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit San Luis Obispo. March, April, May, June, July, August, September, October and November typically offer the best circumstances. While December tends to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized San Luis Obispo climate page with graphs.

 

San Luis Obispo, monthly averages in December

Min Temperature 5°C  

Max Temperature 17°C  

Chance of Rain 33%  

Precipitation 98 mm  

Rainy days 10 days  

Sunshine 220 hours *  

Percentage Sunshine *  

Data from: Paso Robles, the United States of America (38 KM, 23 Miles).

Where to go in the United States of America in December

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

Weather conditions Weather

Temperatures

Precipitation

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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?

For visitors traveling to San Luis Obispo, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in San Luis Obispo.

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.