Ottawa weather in May (Ontario, Canada)

What kind of temperatures can you expect in Ottawa during May? See what weather conditions to anticipate this month with our guide.

Temperatures

The weather in Ottawa is usually perfect in May, characterized by pleasant temperatures and moderate rainfall. Anticipate daytime temperatures around 20°C, while night temperatures can drop to 7°C.

Precipitation

Ottawa in May usually receives moderate rainfall, averaging around 93 mm for the month. The climate data from previous years indicates that there are typically about 12 days days of rain.

Average sunshine

The days are predominantly sunny, with an estimated total of around 231 hours of sunshine. These sun-filled days are perfect for spending time outside. Whether it's playing sports, visiting a park, or going for a bike ride.

If you favor pleasant temperatures and minimal rainfall, May is one of the better months to visit Ottawa. May, August and September typically offer the most agreeable circumstances. On the other hand, January, February, March, November and December tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Ottawa climate page with graphs.

 

Ottawa, monthly averages in May

Min Temperature 7°C  

Max Temperature 20°C  

Chance of Rain 41%  

Precipitation 93 mm  

Rainy days 12 days  

Humidity 49%  

Sunshine 231 hours  

Percentage Sunshine 50%  

Where to go in Canada in May

Find out more about the weather in Canada and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Ottawa, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

4/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Ottawa.

Our site offers climate and forecast data for every country in the world. Are you going to Canada? On this website you can find historical weather averages for many cities in Canada. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.