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%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
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.
Precipitation
Rainy days
Sunshine hours
Chance of sun
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.
| 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 | ||||||