Last updated: March 2, 2024
The weather in Montreal, United States, during May is characterized by an average temperature of 12°C (54°F). Highs can soar to 28°C (83°F), while lows may dip to -1°C (30°F). Typically, the humidity level in Montreal throughout May hovers around 76%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, Montreal averages 87 mm (3.4 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 15 hours 1 minutes of daylight, with the sun shining for approximately 9 hours 24 minutes each day. Additionally, there is a 48% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In May, the UV Index in Montreal reaches a maximum of 8, 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 | 8 | 8 | 8 | 6 | 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 | ||||||