Is Portland hot in January?
Days are typically cold at 8.4°C, while nights average 3.1°C.
United States · 1991–2020 normal
Portland in
January.
Typical January weather in Portland: 8.4°C by day, 3.1°C at night, 158 mm of rain over 16.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high8.4°C
Typical low3.1°C
Rain158 mm
Wet days16.2
In the year-round weather comparison, January scores 5 out of 100 (September leads the year at 93). Daylight is calculated as 9 h 04 from latitude 45.52°.
January at a glance
What is Portland like in January?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 158 mm across about 16 wet days.
How much daylight is there?
There are about 9 h 04 between sunrise and sunset at mid-month, calculated from the place latitude.
Is January a good time to visit?
January ranks 11 of 12 in our weather comparison; September ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5746545
- NOAA station
- USC00356749 · PORTLAND KGW-TV
- Station distance
- 1.2 km from the place centre
- Coverage
- Strong coverage · 29 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Portland is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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