Last updated: March 2, 2024
The weather in St. Catharines, Canada, during June is characterized by an average temperature of 18°C (65°F). Highs can soar to 26°C (79°F), while lows may dip to 11°C (52°F). Typically, the humidity level in St. Catharines throughout June hovers around 79%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In June, St. Catharines averages 82 mm (3.2 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 15 hours 18 minutes of daylight, with the sun shining for approximately 11 hours 21 minutes each day. Additionally, there is a 43% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In June, the UV Index in St. Catharines reaches a maximum of 10, 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 | 9 | 10 | 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 | ||||||