Last updated: March 2, 2024
The weather in Cornwall, Canada, during October is characterized by an average temperature of 10°C (51°F). Highs can soar to 25°C (77°F), while lows may dip to -2°C (29°F). Typically, the humidity level in Cornwall throughout October hovers around 86%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In October, Cornwall averages 139 mm (5.5 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 10 hours 54 minutes of daylight, with the sun shining for approximately 6 hours 22 minutes each day. Additionally, there is a 29% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In October, the UV Index in Cornwall reaches a maximum of 5, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 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 | 1 | 1 | 2 | 3 | 4 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | 0 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||