Portland Weather in January

Portland in January sees low daytime temperatures of 8°C (46°F) and nighttime lows of 2°C (36°F). Rainfall is fairly high this month at around 145 mm (5.7 in), so pack a rain jacket to stay dry.

Rainfall in Portland in January

Typically, about 18 days will experience rainfall, with an average of 145 mm (5.7 in) for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in Portland in January

January in Portland brings typical temperatures with highs around 8°C (46°F) and lows of 2°C (36°F). Winter occurs in January. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. Nights drop to 2°C (36°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Portland in January

The month is characterized by fewer sunny days, with roughly 86 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.

Wind Speed in Portland in January

January sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Portland.