Last updated: March 2, 2024
The weather in Saint John, United States, during March is characterized by an average temperature of 6°C (42°F). Highs can soar to 18°C (64°F), while lows may dip to -6°C (21°F). Typically, the humidity level in Saint John throughout March hovers around 86%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In March, Saint John averages 56 mm (2.2 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 11 hours 57 minutes of daylight, with the sun shining for approximately 7 hours 38 minutes each day. Additionally, there is a 48% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In March, the UV Index in Saint John 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 | 2 | 1 | 1 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||