When to visit
St. Catharines?

Discover the best time of year, based on historical climate, temperature, and precipitation.

St. Catharines
Ontario · Canada

The best time to visit St. Catharines is May, June, August, when the weather, flight prices, and crowds align. — predictable climate

Climate score
October
57

Mixed climate

🌥Mild

1%snow days
Rare snowfall
12%outdoor comfort
Limited outdoor comfort
12%perfect days
Mixed conditions
Significant warming— +1.7° vs. 15 years agoCooling down through the month
Temperature
10–16°C
Moderate temperature variation · Cold nights — bring layers
Feels like
7–14°C
Dry
Precipitation
90mm
Moderate rain · 14 days
Sunshine
7.2h
Mostly cloudy
Humidity (%)
74%
Dry
Annual Climate Analysis
Temperature, Rain & Feels Like
Rain
Actual Temp
Feels Like
-20°-10°0°10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
International eSIM

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Tourist Crowds
Monthly visitor flow
61
Shoulder season
050100JanFebMarAprMayJunJulAugSepOct61NovDec
Tours & tickets in St. Catharines
Browse tours & tickets

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Flights to St. Catharines

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Monthly Overview
Score9111832828379818157199
ClimatePolarPolarColdColdMildHumidHumidHumidHumidMildColdCold
Temperature-3–2°C-4–2°C0–7°C4–12°C10–18°C16–24°C19–27°C19–26°C16–22°C10–16°C4–10°C0–5°C
Feels like-9–-3°C-10–-3°C-5–3°C0–9°C7–17°C16–25°C20–29°C20–27°C15–22°C7–14°C0–6°C-5–0°C
Precipitation82mm
12 days
66mm
11 days
67mm
10 days
107mm
12 days
62mm
10 days
82mm
11 days
91mm
11 days
80mm
11 days
84mm
10 days
90mm
14 days
69mm
11 days
82mm
12 days
Sunshine2.8h
☀︎ 29%
5.4h
☀︎ 51%
6.7h
☀︎ 56%
8.5h
☀︎ 63%
11.1h
☀︎ 75%
12.5h
☀︎ 82%
12.5h
☀︎ 83%
11.5h
☀︎ 83%
10.0h
☀︎ 80%
7.2h
☀︎ 65%
5.7h
☀︎ 59%
2.8h
☀︎ 31%
WindW · 25 km/hW · 28 km/hW · 27 km/hW · 25 km/hNW · 21 km/hW · 21 km/hW · 20 km/hW · 20 km/hSW · 21 km/hSW · 24 km/hSW · 27 km/hSW · 26 km/h
Humidity (%)75%70%70%71%73%72%76%76%75%74%71%76%
Perfect days0%0%0%3%27%49%43%51%48%12%1%0%
Dry streak7d6d8d7d9d7d7d7d9d6d7d6d
Sunny streak4d6d9d11d16d20d20d18d15d8d6d3d
Extreme cold81%85%66%15%0%————0%16%57%
Temperature+1.0°+3.2°+3.8°+0.9°+1.1°+0.8°+1.2°+0.3°+0.5°+1.7°+1.2°+2.5°
RainfallStableStableStableStableStableStableGetting drierStableStableStableStableStable
Ideal warm days0%0%0%0%4%12%33%27%10%1%0%0%
Outdoor comfort0%0%1%3%28%41%28%36%41%12%1%0%
Dry week odds7%4%10%7%18%8%5%4%13%3%7%4%
Heavy rain1%2%2%4%2%3%3%2%4%3%2%2%
Snow days52%52%27%12%1%————1%16%41%
Muggy days—————6%20%18%5%———
Day length9.4h10.5h12.0h13.4h14.7h15.3h15.0h13.9h12.5h11.0h9.7h9.0h
Tourist CrowdsLow seasonLow seasonLow seasonShoulder seasonShoulder seasonHigh seasonHigh seasonHigh seasonHigh seasonShoulder seasonShoulder seasonShoulder season

Frequently asked questions

What is the best time to visit St. Catharines?

The best time to visit St. Catharines is May, June, August, September, July, with temperatures between 10 °C and 27 °C. The best month is May. May is shoulder season.

What is the weather like in St. Catharines?

St. Catharines has a climate with an overall score of 4.7/10. Annual temperatures range from -4 °C to 27 °C.

What is the hottest month in St. Catharines?

The hottest month in St. Catharines is July, with average highs of 27 °C and lows of 19 °C.

What is the rainiest month in St. Catharines?

The rainiest month in St. Catharines is April, with an average of 107 mm of precipitation.

When is peak season in St. Catharines?

Peak season in St. Catharines is June, July, August, September. This is the most popular period, with the highest tourism levels and prices.

When is shoulder season in St. Catharines?

Shoulder season in St. Catharines falls in April, May, October, November, December. It offers a good balance of decent weather and lower prices compared to peak season.