Portland Weather in January
January in Portland brings very low temperatures, with daytime highs of 0°C (32°F) and nights around -9°C (16°F). Rainfall is at its lowest this month, making it one of the more reliable months to be outdoors.
Rainfall in Portland in January
Take advantage of the dry conditions this month, with minimal rain expected, even if it's a cooler time of year. You can expect snow/rain on roughly 11 days based on historical data, averaging 87 mm (3.4 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Portland in January
In January, Portland sees very low temperatures, with highs of 0°C (32°F). Nights drop to around -9°C (16°F). January is typically considered a winter month. Cold conditions tend to persist from morning through evening, so be prepared for winter weather. Nights drop below freezing to -9°C (16°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. It is the coldest month of the year, so be sure to pack proper winter clothing for the conditions.Pack accordingly with warm clothes.
Sunshine in Portland in January
The month brings about 162 hours of sunlight, offering a comfortable mix of sun and overcast.
Average water temperature in January
The water temperature is only 5°C (41°F) this month — cold enough that most people will want to stay out. Hardy swimmers may manage a quick dip, but it won't be comfortable.If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit Portland. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Portland's climate page.
Portland Temperature in January
Min Temperature
-9°C (16°F)
Max Temperature
0°C (32°F)
Water Temperature
5°C (41°F)
Chance of Rain
38%
Precipitation
87 mm (3.4 in)
Rainy days
11 days
Humidity
67%
Sunshine
162 hours
Percentage Sunshine
57%
Best Places 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. See all of the United States of America in January →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Portland in January
We recommend to layer up for chilly conditions in Portland in January. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Expect water temperatures of around 5°C (41°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Portland in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Portland's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Portland climate overview or explore weather in the United States of America.
