November Weather in Portland, United States

Last updated: June 24, 2025

In Portland, United States, the average temperature in November hovers around 19°C (66°F), making it a comfortable time to visit. Expect temperatures to range from a chilly 1°C (33°F) at night to a warm 30°C (86°F) during the day. With an average precipitation of 51 mm (2.0 in) spread across 6 days, occasional showers are possible, and the average humidity levels at 78% can add a bit of stickiness to the air. Make sure to pack accordingly!

November Temperature in Portland

In November in Portland, the average temperature is 19°C (66°F). Maximums can reach 30°C (86°F), while minimums can dip to as low as 1°C (33°F). It's a great time to enjoy a mix of warm days and cool nights, perfect for exploring the outdoors and embracing the local culture.

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 19°C (66°F), with highs reaching up to 30°C (86°F) and lows dropping to around 1°C (33°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 51 mm (2.0 in) over the course of 6 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 51 mm (2.0 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

November Humidity in Portland

In Portland in November, humidity is 78%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making traveling quite uncomfortable unless you're well-prepared with lightweight, breathable clothing and frequent breaks to stay hydrated.

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 78%, 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 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Portland.

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 7, which falls under the high 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	14°C (58°F)	39 mm (1.5 inches)	78%	moderate
February Weather	16°C (60°F)	31 mm (1.2 inches)	82%	very high
March Weather	20°C (68°F)	52 mm (2.1 inches)	79%	very high
April Weather	23°C (73°F)	44 mm (1.7 inches)	82%	extreme
May Weather	26°C (79°F)	138 mm (5.4 inches)	81%	extreme
June Weather	28°C (83°F)	136 mm (5.4 inches)	77%	extreme
July Weather	29°C (84°F)	101 mm (4.0 inches)	78%	extreme
August Weather	29°C (85°F)	81 mm (3.2 inches)	78%	extreme
September Weather	28°C (82°F)	141 mm (5.6 inches)	79%	extreme
October Weather	24°C (75°F)	77 mm (3.0 inches)	77%	very high
November Weather	19°C (66°F)	51 mm (2.0 inches)	78%	high
December Weather	16°C (61°F)	47 mm (1.9 inches)	80%	moderate