Saint Catharines Weather in May
May in Saint Catharines sees daytime temperatures around 17°C (63°F) and lows of 10°C (50°F) at night. With around 90 mm (3.5 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Saint Catharines in May
Typically around 11 days of rainfall are expected, averaging 90 mm (3.5 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Saint Catharines in May
May in Saint Catharines sees highs of 17°C (63°F) and lows of 10°C (50°F) overnight. Conditions are often most pleasant around the middle of the day. Nights drop to around 10°C (50°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Saint Catharines in May
Enjoy a sunny month with about 259 hours of sunshine, the clear skies make Saint Catharines even more beautiful.Should you favor a climate that's both dry and comfortably warm, July, August and September typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Saint Catharines's climate page.
Saint Catharines Temperature in May
Min Temperature
10°C (50°F)
Max Temperature
17°C (63°F)
Chance of Rain
38%
Precipitation
90 mm (3.5 in)
Rainy days
11 days
Humidity
67% *
Sunshine
259 hours *
Percentage Sunshine
57% *
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 →
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What to Wear in Saint Catharines 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. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Saint Catharines 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 Canada, check out our Saint Catharines's climate page.
Temperature Rainfall Sunshine Humidity
See the full Saint Catharines climate overview or explore weather in Canada.
