Foster City weather in January (California, United States of America)
How is the weather in Foster City in January? This guide provides all the details you need.
In January, Foster City generally has moderate temperatures and moderate rainfall. Throughout the day, temperatures typically settle at around 15°C. But by evening, they drop to around 6°C.
Foster City in January usually receives moderate rainfall, averaging around 61 mm for the month. Based on our climate data of the past 30 years, about 9 days of rain are anticipated.
The city usually sees around 186 hours of sunlight, indicating a moderately sunny period.
If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Foster City. May, June, July, August, September and October typically offer 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 Foster City climate page with graphs.
Foster City, monthly averages in January
Min Temperature
6°C
Max Temperature
15°C
Water Temperature
12°C *
Chance of Rain
30%
Precipitation
61 mm
Rainy days
9 days
Humidity
80% *
Windspeed
11 km/h *
Sunshine
186 hours *
Percentage Sunshine
61% *
Where to go in the United States of America in January
Find out more about the weather in the United States of America in January and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Foster City in January?
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 12°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 January.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Foster City.
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.
