November Weather in Portland, United States

Last updated: June 24, 2025

In Portland, United States, the average temperature in November hovers around -2°C (28°F). However, temperatures can vary significantly, with a minimum dipping to -21°C (-5°F) and a maximum soaring to 23°C (74°F). Expect some moisture, as the region experiences an average precipitation amount of 21 mm (0.8 in) spread over 4 days, coupled with a high average humidity of 86%.

November Temperature in Portland

In November in Portland, the average temperature is -2°C (28°F). Maximum temperatures can reach 23°C (74°F), while minimum temperatures can plummet to as low as -21°C (-5°F). Travelers should be prepared for a wide range of temperatures, making layered clothing essential for enjoying their stay.

November Weather in Portland: Daily Temperature Highs, Lows, and Averages

The chart illustrates November temperature patterns in Portland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portland, November typically has an average temperature of -2°C (28°F), with highs reaching up to 23°C (74°F) and lows dropping to around -21°C (-5°F).

Data source: Temperature data for Portland generated using information from the Copernicus Climate Change Service.

November Precipitation in Portland

In Portland in November, the precipitation amount is 21 mm (0.8 in) over a span of 4 days.

November Precipitation Trends in Portland

The chart displays monthly precipitation patterns in Portland, with values for each month alongside November’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how November’s conditions compare to those of other months. In Portland, November typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 4 days.

Data source: Precipitation data for November generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

November Humidity in Portland

In Portland in November, humidity is 86%. With an average temperature of -2°C (28°F), this humidity feels like a dense fog wrapping around you, making it feel even colder and creating an uncomfortable chill that can dampen any plans for outdoor exploration.

November Average Humidity in Portland

This chart illustrates the average monthly humidity levels in Portland, with November’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In November, average humidity in Portland is approximately 86%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for November generated using information from the Copernicus Climate Change Service.

November UV Index in Portland

In Portland in November, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Portland, you can check the information here.

Maximum UV Index Levels in Portland for November

The chart shows the monthly maximum UV Index (UVI) for Portland in November, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In November, the maximum UV index in Portland typically reaches 3, which falls under the moderate exposure category.

Data source: Portland November UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How November Weather in Portland Compares to Other Months

Weather in Portland varies notably across the year, with each month offering distinct climate conditions. This page compares November’s weather to other months in Portland, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Portland, showing how November’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-12°C (10°F)	18 mm (0.7 inches)	90%	low
February Weather	-13°C (9°F)	19 mm (0.8 inches)	92%	moderate
March Weather	-3°C (27°F)	27 mm (1.1 inches)	85%	moderate
April Weather	4°C (39°F)	41 mm (1.6 inches)	81%	high
May Weather	13°C (56°F)	55 mm (2.2 inches)	75%	very high
June Weather	20°C (69°F)	91 mm (3.6 inches)	79%	very high
July Weather	22°C (72°F)	62 mm (2.4 inches)	76%	very high
August Weather	20°C (68°F)	81 mm (3.2 inches)	78%	very high
September Weather	15°C (60°F)	68 mm (2.7 inches)	77%	high
October Weather	6°C (44°F)	79 mm (3.1 inches)	79%	moderate
November Weather	-2°C (28°F)	21 mm (0.8 inches)	86%	moderate
December Weather	-8°C (18°F)	39 mm (1.5 inches)	86%	low