Average temperature within Seattle through the month of January is 6. With the average high being 7 and lows being 2. We have provided a clearer breakdown here:

MonthDegrees Celsius
Temperature6
High Temperature7
Low Temperature2
Sunshine Per Day3

Seattle, Washington (USA) Weather in January FAQs

So what is the weather like then?

Normally the weather is 6 celsius although it will generally vary during the day and night

What is the weather like in summer?

Typically the weather in summer is 22.

How does the temperature vary in Summer and Winter?

Average temperatures will vary depending on the months, but its approx a 7 degrees celsius

How cold should I expect it to get?

Usually the low temps are 2 degrees.Click to see more Seattle Weather including Seattle, Washington (USA) February Weather