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.