November Weather in Portland, United States

Last updated: June 24, 2025

In November, the average temperature in Portland, United States hovers around 5°C (42°F), with the mercury dipping as low as -15°C (5°F) and peaking at a comfortable 26°C (80°F). Expect a precipitation amount of 82 mm (3.2 in) over approximately 9 days, contributing to the notable average humidity of 89%. Stay prepared for varied weather!

November Temperature in Portland

In November in Portland, the average temperature is 5°C (42°F). Maximums can reach 26°C (80°F), while minimums can drop as low as -15°C (5°F). Be prepared for a wide range of temperatures when traveling to Portland during this time.

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 5°C (42°F), with highs reaching up to 26°C (80°F) and lows dropping to around -15°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 total precipitation amount is 82 mm (3.2 in), occurring over a span of 9 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 82 mm (3.2 inches) of precipitation spread over approximately 9 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 89%. With an average temperature of 5°C (42°F), this humidity feels like a chill that clings to your skin, making outdoor activities less enjoyable and requiring extra layers to stay warm and comfortable while exploring.

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 89%, 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 reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Portland for better planning.

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 4, 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	-2°C (29°F)	74 mm (2.9 inches)	85%	moderate
February Weather	0°C (32°F)	88 mm (3.4 inches)	85%	moderate
March Weather	5°C (42°F)	101 mm (4.0 inches)	86%	high
April Weather	10°C (51°F)	93 mm (3.7 inches)	87%	very high
May Weather	17°C (63°F)	127 mm (5.0 inches)	81%	very high
June Weather	22°C (73°F)	114 mm (4.5 inches)	82%	extreme
July Weather	24°C (76°F)	101 mm (4.0 inches)	81%	very high
August Weather	23°C (74°F)	102 mm (4.0 inches)	79%	very high
September Weather	20°C (69°F)	75 mm (2.9 inches)	78%	very high
October Weather	14°C (57°F)	97 mm (3.8 inches)	81%	high
November Weather	5°C (42°F)	82 mm (3.2 inches)	89%	moderate
December Weather	2°C (35°F)	67 mm (2.7 inches)	86%	low