Ontario Weather in May
Ontario in May averages 23°C (73°F) during the day and 8°C (46°F) at night. Some rainfall is typical for this time of year.
Rainfall in Ontario in May
Historically, approximately 7 days this month are expected to have rain, averaging 24 mm (0.9 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Ontario in May
May is a perfect month in Ontario, with 23°C (73°F) during the day and 8°C (46°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.If you're inclined towards comfortable temperatures and drier conditions, May is a good time to visit Ontario.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Ontario's climate page.
Ontario Temperature in May
Min Temperature
8°C (46°F)
Max Temperature
23°C (73°F)
Chance of Rain
23%
Precipitation
24 mm (0.9 in)
Rainy days
7 days
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Ontario in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Pack a light rain jacket or compact umbrella for occasional showers.What To Do in Ontario in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Ontario's climate page.
See the full Ontario climate overview or explore weather in the United States of America.
