San Diego weather in January (California, United States of America)
What weather conditions can you expect in San Diego this January? Here’s a detailed forecast of the month’s weather patterns.
Temperatures
The weather in San Diego during January is typically perfect, with pleasant temperatures and moderate rainfall. Expect daytime highs to reach approximately 20°C, with nighttime lows dipping to around 9°C.
Precipitation
San Diego in January usually receives moderate rainfall, averaging around 35 mm for the month. Based on our climate data of the past 30 years, about 5 days of rain are anticipated.Average sunshine
The days are predominantly sunny, with an estimated total of around 240 hours of sunshine. These sun-filled days are perfect for spending time outside. Whether it's playing sports, visiting a park, or going for a bike ride.If you're a fan of comfortable temperatures and drier conditions, January is a great time to visit. January, February, March, April, May, June, July, August, September, October and November generally stand out with the best circumstances. While December tends to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized San Diego climate page with graphs.
San Diego, monthly averages in January
Min Temperature
9°C
Max Temperature
20°C
Chance of Rain
17%
Precipitation
35 mm
Rainy days
5 days
Humidity
64%
Sunshine
240 hours
Percentage Sunshine
75%
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.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
For visitors traveling to San Diego, 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.
Interested in more climate information?
This site provides you with all the information you need about the climate in San Diego.
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.
