October Weather in Cornwall

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%.

-2°C (29°F)

Minimum temperature

10°C (51°F)

Average temperature

25°C (77°F)

Maximum temperature

86%

Humidity

Precipitation and Sunshine hours

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.

139 mm (5.5 inches)

Precipitation

14 rainy days

Rainy days

6 hours 22 minutes

Sunshine hours

29%

Chance of sun

UV Index

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.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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

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