Weather in Ontario in April 2026
Average weather
Average temperature in Ontario in April
The temperature in April is +75°F on average, with a range between a maximum of +90°F during the day and a minimum of +39°F at night.
The average maximum temperature goes up 18% by the end of the month, compared with the beginning of the month, from +72°F to +81°F.
Is Ontario warm or cold in April?
Ontario is typically warm in April.
Maximum temperatures go up compared to the previous month from +70°F to +75°F. The minimum temperature also goes up from +50°F to +52°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how April is compared to other months in Ontario:
Climate in Ontario in April
| March | April | May | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +70°F | +75°F | +79°F | ||||
| Min. temperature | ||||||
| +34°F | +36°F | +43°F | ||||
| Max. temperature | ||||||
| +93°F | +97°F | +104°F | ||||
| Rainfall | ||||||
| 78 mm | 27 mm | 12 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 65% | 62% | 64% | ||||
| Air pressure | ||||||
| 1015 HPa | 1014 HPa | 1012 HPa | ||||
| Sunny days | ||||||
| 7 | 8 | 8 | ||||
| Cloudy days | ||||||
| 14 | 15 | 19 | ||||
| Rainy days | ||||||
| 10 | 7 | 4 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
April weather is still as good as in March. It’s getting warmer as April arrives. The average maximum temperature goes up from +70°F to +75°F during the day. As April arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 78 mm to 27 mm. It feels drier, as humidity decreases from 65% to 62%. The average wind speed doesn’t change much during April, staying around 2 m/s. The good news is there are likely to be more sunny days in April, from 7 to 8.
May brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Ontario is gradually increasing during April, going from 3 m/s to 3 m/s over the course of the month.
Rain
How was the weather last April in Ontario?
Climate Change Over the Years
The climate in Ontario in April has not changed that much over the last 43 years.
The average temperature was the lowest in 1998 (+74°F) and the highest in 2014 (+82°F). The driest year was 1989 with only 153 mm of rainfall, and the wettest year was 2022 with 1158 mm.
FAQ
Is April a good time to visit Ontario?
Can you sunbathe in Ontario in April?
Is Ontario rainy in April?
Is it sunny in Ontario in April?
Other cities in USA
Monthly weather in Ontario
Source of the data
For this page, we’ve looked at the typical weather in Ontario, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
