Last updated: June 24, 2025
In November, the average temperature in Portland, United States hovers around 4°C (39°F). Be prepared for swings in weather, with minimums plummeting to -16°C (3°F) and highs reaching up to 25°C (78°F). Expect about 64 mm (2.5 in) of precipitation over 10 days, coupled with a high average humidity of 87%. Whether you're bundling up for the chill or enjoying occasional warm spells, be ready for a diverse climate this month!
In November in Portland, the average temperature is 4°C (39°F). Maximum temperatures can reach 25°C (78°F), while minimums can drop as low as -16°C (3°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack for both warm days and chilly nights.
In Portland in November, the precipitation amount is 64 mm (2.5 in) over a span of 10 days.
In Portland in November, humidity is 87%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and gritty, as the air hangs heavy and clings to your skin.
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.
UV Risk Categories
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.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (26°F) | 67 mm (2.6 inches) | 87% | low |
| February Weather | -3°C (27°F) | 71 mm (2.8 inches) | 87% | moderate |
| March Weather | 3°C (37°F) | 68 mm (2.7 inches) | 86% | moderate |
| April Weather | 8°C (47°F) | 87 mm (3.4 inches) | 87% | very high |
| May Weather | 15°C (60°F) | 136 mm (5.4 inches) | 82% | very high |
| June Weather | 21°C (70°F) | 106 mm (4.2 inches) | 81% | very high |
| July Weather | 24°C (75°F) | 82 mm (3.2 inches) | 78% | very high |
| August Weather | 22°C (72°F) | 68 mm (2.7 inches) | 79% | very high |
| September Weather | 18°C (65°F) | 108 mm (4.3 inches) | 79% | high |
| October Weather | 12°C (53°F) | 127 mm (5.0 inches) | 82% | moderate |
| November Weather | 4°C (39°F) | 64 mm (2.5 inches) | 87% | moderate |
| December Weather | 0°C (32°F) | 63 mm (2.5 inches) | 86% | low |