Ontario weather in June

Are you planning a trip to Ontario in June and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Ontario in June?

Ontario is a region in Canada. The weather in Ontario in June can be quite varied, with temperatures that range from moderate to warm and precipitation levels ranging from moderate to high.

Based on our climate data spanning from 1990-2020, the average maximum temperature is moderate in Schreiber at 14°C to warm in Amherstburg at 26°C. Nighttime temperatures generally drop to 18°C in Amherstburg and 8°C in Schreiber.

In June, precipitation varies across different areas. From moderate rainfall in Niagara on the Lake with an average of 63 mm to high rainfall in Dryden with 119 mm. The days are mostly sunny, with an average total of around 260 hours of sunshine in Toronto. The sunlight during this month doesn't just make the days brighter, it also seems to make everyone a bit more cheerful.

For a closer look at June's conditions in Ontario, see the map below. For a more detailed look at Ontario's yearly weather, check out our Ontario climate page.

Where to go in Ontario in June

Find the average weather conditions in June for the most popular destinations in Ontario on the map below. Click on a destination dot for more detailed information.

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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).

Popular destinations in Ontario

What is the weather like in June for the 5 most popular destinations in Ontario?

Average weather in Toronto

In June Toronto generally has pleasant temperatures with maximum daytime temperatures around 22°C, minimum nighttime temperatures around 14°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Toronto
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   May May
<<  
16°C 
8°C 
227 hours 
80 mm 
11 days 
22°C 
14°C 
260 hours 
83 mm 
10 days 
July   >> July
>>  
26°C 
18°C 
280 hours 
71 mm 
9 days 
Climate in Toronto

Average weather in Ottawa

In June Ottawa generally has high temperatures with maximum daytime temperatures around 25°C, minimum nighttime temperatures around 12°C and high monthly rainfall. So on average the conditions are pleasant that month.

Ottawa
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   May May
<<  
20°C 
7°C 
231 hours 
93 mm 
12 days 
25°C 
12°C 
255 hours 
105 mm 
12 days 
July   >> July
>>  
27°C 
15°C 
280 hours 
102 mm 
11 days 
Climate in Ottawa

Average weather in Niagara Falls

In June Niagara Falls generally has high temperatures with maximum daytime temperatures around 25°C, minimum nighttime temperatures around 14°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Niagara Falls
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   May May
<<  
21°C 
9°C 
259 hours 
67 mm 
13 days 
25°C 
14°C 
290 hours 
90 mm 
13 days 
July   >> July
>>  
27°C 
17°C 
307 hours 
90 mm 
12 days 
Climate in Niagara Falls

Average weather in Mississauga

In June Mississauga generally has high temperatures with maximum daytime temperatures around 23°C, minimum nighttime temperatures around 14°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Mississauga
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   May May
<<  
18°C 
8°C 
230 hours 
82 mm 
11 days 
23°C 
14°C 
261 hours 
87 mm 
10 days 
July   >> July
>>  
27°C 
17°C 
295 hours 
76 mm 
9 days 
Climate in Mississauga

Average weather in Niagara on the Lake

In June Niagara on the Lake generally has moderate temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 10°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Niagara on the Lake
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   May May
<<  
15°C 
6°C 
259 hours 
47 mm 
9 days 
18°C 
10°C 
290 hours 
63 mm 
9 days 
July   >> July
>>  
20°C 
12°C 
307 hours 
53 mm 
9 days 
Climate in Niagara on the Lake

Is your destination not in the list? Have a look at other destinations in Ontario, in Canada.

Is June the best time to visit Ontario?

We consider June to be one of the best times to travel to Ontario. Typically, the climate in Toronto is perfect. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, the best visiting conditions can be found in June, July, August and September offering mostly perfect weather in Toronto. On the other hand, the months of January, February, March, April, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Ontario. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to Canada? Get detailed 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 climate conditions. Find out where to go with our weather planner.