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Toronto Weather in May
May in Toronto sees daytime temperatures around 16°C (61°F) and lows of 8°C (46°F) at night. With around 80 mm (3.1 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Toronto in May
Climate statistics over the past 30 years suggest around 11 days of rain, with 80 mm (3.1 in) average for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Toronto in May
In May, Toronto gets moderate temperatures, with highs of 16°C (61°F). Nights cool to around 8°C (46°F). The difference between afternoon and evening temperatures is usually noticeable. 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.
Sunshine in Toronto in May
There are approximately 227 hours of sunshine this month, resulting in mostly clear days.If you prefer enjoying temperate temperatures and rain-free days, June, July, August and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Toronto Temperature in May
Min Temperature
8°C (46°F)
Max Temperature
16°C (61°F)
Chance of Rain
36%
Precipitation
80 mm (3.1 in)
Rainy days
11 days
Humidity
76%
Sunshine
227 hours
Percentage Sunshine
50%
Toronto Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Toronto - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Toronto typically rise from around 15°C (59°F) at the start of May to approximately 21°C (70°F) by the end. Nights are cool, with lows typically ranging from 6°C (43°F) to 12°C (54°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather records for Toronto in May
Browse day-by-day weather records for Toronto spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Toronto historical weather extremes in May
The extremes listed below come from historical weather data collected in Toronto from 1976 through 2026.
- The warmest day in May was on May 29, 2006, with a maximum of 34°C (93°F).
- On May 7, 1976, Toronto saw its coldest May day with temperatures maxing out at 3°C (37°F).
- Toronto registered its coldest May night on May 3, 1986, with temperatures dropping to -2°C (28°F).
Best Places in Canada in May
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Toronto in May
Pack for changing conditions in Toronto in May. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Toronto in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports9/10
Toronto 3-Day Forecast
More climate data for Toronto
Temperature Rainfall Sunshine Humidity
See the full Toronto climate overview or explore weather in Canada.
Popular in May
Where to go in May - average daytime high across popular destinations.
Niagara Falls
21°C (70°F) Montréal20°C (68°F) Ottawa20°C (68°F) Quebec City19°C (66°F) Calgary17°C (63°F) Vancouver16°C (61°F) Toronto16°C (61°F) Whistler11°C (52°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 5 most beautiful lakes in Canada
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