Last updated: March 2, 2024
The weather in St. Catharines, Canada, during March is characterized by an average temperature of 1°C (35°F). Highs can soar to 13°C (55°F), while lows may dip to -9°C (16°F). Typically, the humidity level in St. Catharines throughout March hovers around 88%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In March, St. Catharines averages 71 mm (2.8 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 11 hours 57 minutes of daylight, with the sun shining for approximately 7 hours 28 minutes each day. Additionally, there is a 47% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In March, the UV Index in St. Catharines 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.
| 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 | 5 | 4 | 3 | 2 | 1 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||