Last updated: March 2, 2024
The weather in St. Catharines, Canada, during July is characterized by an average temperature of 23°C (73°F). Highs can soar to 28°C (83°F), while lows may dip to 17°C (63°F). Typically, the humidity level in St. Catharines throughout July hovers around 77%.
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Average temperature
Maximum temperature
Humidity
In July, St. Catharines averages 106 mm (4.2 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 14 hours 58 minutes of daylight, with the sun shining for approximately 11 hours 14 minutes each day. Additionally, there is a 43% probability of sunny days during this period.
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In July, the UV Index in St. Catharines reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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 | 9 | 9 | 9 | 8 | 6 | 4 | 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 | ||||||