Cornwall weather in May (Ontario, Canada)

Curious about the climate in Cornwall this May? Our page offers a comprehensive look at the weather you can expect this month.

Temperatures

The weather in Cornwall is usually perfect in May, featuring pleasant temperatures and moderate rainfall. Expect the temperatures during the day to hover around 20°C. At night, they will likely drop to about 9°C.

Precipitation

Cornwall in May usually receives moderate rainfall, averaging around 81 mm for the month. On average, there are about 13 days with rain during this month.

If you favor pleasant temperatures and minimal rainfall, May is one of the better months to visit Cornwall. May, July, 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 Cornwall climate page with graphs.

 

Cornwall, monthly averages in May

Min Temperature 9°C  

Max Temperature 20°C  

Chance of Rain 44%  

Precipitation 81 mm  

Rainy days 13 days  

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

Map not visible? Whoops sorry! Please refresh the page.

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 Cornwall, 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

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 Cornwall.

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.