July Weather in Cornwall

Last updated: March 2, 2024

The weather in Cornwall, Canada, during July is characterized by an average temperature of 22°C (72°F). Highs can soar to 33°C (91°F), while lows may dip to 10°C (51°F). Typically, the humidity level in Cornwall throughout July hovers around 76%.

10°C (51°F)

Minimum temperature

22°C (72°F)

Average temperature

33°C (91°F)

Maximum temperature

76%

Humidity

Precipitation and Sunshine hours

In July, Cornwall averages 116 mm (4.6 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 15 hours 10 minutes of daylight, with the sun shining for approximately 11 hours 13 minutes each day. Additionally, there is a 33% probability of sunny days during this period.

116 mm (4.6 inches)

Precipitation

14 rainy days

Rainy days

11 hours 13 minutes

Sunshine hours

33%

Chance of sun

UV Index

In July, the UV Index in Cornwall reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 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 2 3 5 7 8 9 8 7 5 3 2 1
Exposure Low Moderate High VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 25 min 30 min 45 min

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