Last updated: March 2, 2024
The weather in Ottawa, United States, during March is characterized by an average temperature of 9°C (48°F). Highs can soar to 25°C (77°F), while lows may dip to -9°C (17°F). Typically, the humidity level in Ottawa throughout March hovers around 70%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In March, Ottawa averages 98 mm (3.9 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 11 hours 58 minutes of daylight, with the sun shining for approximately 7 hours 12 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 Ottawa reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 25 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 | 5 | 6 | 7 | 6 | 5 | 4 | 2 | 1 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||