Avg High
Seattle in January
Verdict
In Seattle, January has a distinct winter feel. As the season moves along, the weather is warming up. You can usually expect a cold month that feels variable day to day. Breezes can be part of the character, especially in exposed spots.
It suits travellers who want straightforward weather for sightseeing and day trips. Lookouts and coastal walks can feel sharper when the wind is up.
Avg Low
Rain
Daylight
9h
What to expect
- Daytime feel - Cold days with little swing from morning to evening. It often feels a touch cooler in the shade.
- Wet weather - Expect plenty of wet weather. Expect damp surfaces and slick paths. You’ll want a proper rain setup rather than a ‘just in case’.
- Midday sun - Low UV most days. UV isn't typically the limiting factor for outdoor plans. This is a 'don't forget the hat' month.
- Exposure - Refreshing breezes, and expect sharp gusts that can change plans in exposed areas. On the water or higher ground it feels stronger.
January in context
How it compares to the rest of the year in Seattle.
Hottest (avg)
#11 / 12
Wettest (avg)
#3 / 12
Daylight Hours
#11 / 12
Windiest (avg)
#3 / 12
Highest UV
#11 / 12
Most Humid
#1 / 12
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight
- 8.9 hours
- UV index (max)
- 2
- Typical sun hours
- 07:49 – 16:46
Rain & Snow
- Total
-
- Rainy days
- 20
- Cloud cover
- 79%
- Snowfall
-
Humidity & Wind
- Humidity (avg)
- 85%
- Wind (avg)
-
- Wind (max gusts)
-
Frequently asked questions
Is January a good time to visit Seattle?
Typical January days in Seattle reach highs of 7°C (45°F) with nights around 2°C (36°F). It usually feels chilly by day and very cold after dark. It is among the wetter months, so it is wise to have some indoor backup plans or flexible activities.
What are temperatures like in January?
Daytime temperatures in January typically peak near 7°C (45°F), while nights drop to around 2°C (36°F). Expect chilly afternoons and very cold evenings.
How much does it rain in January?
Rainfall in January averages 178 mm (7.0 in) across roughly 20 days. Overall it is a very wet time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in January?
You can expect about 9 hours of daylight in January. Sunrise is typically around 07:49 and sunset near 16:46. Daylight is quite limited, and it can feel like a short-day season.
How strong is the sun in January?
UV levels are usually low (around 2), so standard sun protection is enough.
Is it windy in January?
In January, average wind speeds are around 11 km/h (7 mph), with gusts on the windiest days reaching about 61 km/h (38 mph). On the ground, it is it is a notably windy place, and strong gusts are fairly common.