Ottawa weather in March 2021

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2
2°C max day temperature
5
5 hours of sunshine per day
11
11 days with some rainfall
-8
-8°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
62
62 mm of monthly rainfall
3
3 (Moderate) UV index

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The March weather guide for Ottawa, Ontario shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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How cold is it in Ottawa in March?

Daytime temperatures usually reach 2°C in Ottawa in March, falling to -8°C at night.

How sunny is it in Ottawa in March?

There are normally 5 hours of bright sunshine each day in Ottawa in March - that's 43% of daylight hours.

Does it rain in Ottawa in March?

There are usually 11 days with some rain in Ottawa in March and the average monthly rainfall is 62mm. Rain may fall as snow in this month.

Metric (°C / mm) | Imperial (°F / inches)