March Weather in Ottawa

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%.

-9°C (17°F)

Minimum temperature

9°C (48°F)

Average temperature

25°C (77°F)

Maximum temperature

70%

Humidity

Precipitation and Sunshine hours

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.

98 mm (3.9 inches)

Precipitation

11 rainy days

Rainy days

7 hours 12 minutes

Sunshine hours

47%

Chance of sun

UV Index

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.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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

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