Last updated: March 2, 2024
The weather in Portland, United States, during October is characterized by an average temperature of 13°C (56°F). Highs can soar to 23°C (74°F), while lows may dip to 6°C (43°F). Typically, the humidity level in Portland throughout October hovers around 83%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In October, Portland averages 151 mm (5.9 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 11 hours 0 minutes of daylight, with the sun shining for approximately 6 hours 50 minutes each day. Additionally, there is a 30% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In October, the UV Index in Portland reaches a maximum of 6, indicating a level of High exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 25 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 0 | 1 | 1 | 3 | 4 | 5 | 6 | 5 | 4 | 3 | 1 | 1 | 0 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||