Last updated: March 2, 2024
The weather in Ottawa, United States, during October is characterized by an average temperature of 14°C (58°F). Highs can soar to 31°C (88°F), while lows may dip to -1°C (30°F). Typically, the humidity level in Ottawa throughout October hovers around 71%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In October, Ottawa averages 115 mm (4.5 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 11 hours 8 minutes of daylight, with the sun shining for approximately 8 hours 3 minutes each day. Additionally, there is a 53% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In October, the UV Index in Ottawa reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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 | 6 | 6 | 6 | 5 | 3 | 2 | 1 | 0 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||