Ontario - Canada weather in May 2025
Ontario - Canada weather in May 2025
Day
19 °C
Night
8 °C
Sea
5 °C
Precipitation
80 mm
in month
Rainy days
11 days
in month
Daylight
15 hours
average
Sunshine
7 hours
average
Humidity
66 %
Day
19 °C
Night
8 °C
Sea
5 °C
Precipitation
80 mm
in month
Rainy days
11 days
in month
Daylight
15 hours
average
Sunshine
7 hours
average
Humidity
66 %
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Weather overview and FAQs
Weather overview
In May in Ontario, the average air temperature ranges from 19 °C (66 °F) during the day to 8 °C (46 °F) at night. There are 11 days of rain on average, where the rainfall is 80 mm (3.14 in).
Is May a good month to visit Ontario?
There are good conditions for visiting in Ontario in May. There are some people, who may feel a slight chill at 19 °C (66 °F), but others will feel perfectly fine. The temperature of 8 °C (46 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
Is the temperature rising or falling in the course of time in Ontario in May?
Over the course of May in Ontario, the temperatures are rising from 16 °C (60 °F) at the beginning of the month to 22 °C (71 °F) at the end of the month.
What is the temperature in Ontario during the day in May?
In Ontario in May, the average daily temperatures will be 19 °C (66 °F). Nice temperature for walking around the city or on the beach, but you will probably get cold soon when wearing a swimsuit. When walking around all day, people used to cold conditions, pull out their shorts and get rid of their sweaters. On some days, when spending time in the direct sun, sunscreen can be useful, especially for people with more sensitive skin.
How many days of precipitation on average can I expect in May in Ontario?
There are 11 days, which are rainy in May in Ontario, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.6 days of the week, or in general - 37 % days.
What is the air temperature in May in Ontario at night?
The average night temperature in Ontario in May is 8 °C (46 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.
What is the rainfall intensity in Ontario in May?
In May in Ontario, there is 80 mm (3.14 in) rainfall, which means on average 3 mm (0.11 in) rainfall per day.
How windy is it in Ontario in May?
In May in Ontario, there will be an average wind scale of 4.
Is there a wet season in May in Ontario?
No, there is no wet season in Ontario in May - you can expect 11 days of rain during the month.
How many sunny hours can I expect in Ontario in May?
In May in Ontario, you can expect around 7 hours of sunshine.
How long is the day (from dawn till dusk) in Ontario in May?
The length of daylight in Ontario in May is 15 hours.