St. Catharines Weather in August

What's the weather like in St. Catharines (Ontario) in August 2024?

The climate in St. Catharines during August can be summarized as warm, humid and reasonably dry.

August is in the summer in St. Catharines and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (78°F), whilst at night 16°C (61°F) is normal.

St. Catharines weather averages (imperial / metric)
Daytime temperature 25.8°C 78.4°F
Nightly temperature 16.1°C 60.9°F
Average temperature 20.9°C 69.6°F
Daily sunshine 8.7 hrs
Avg rainfall 78 mm 3.1 ins
Rainy days 10 days
Sea temperature 21.4°C 70.5°F
Humidity 73%
Windspeed 12.2kph 8 mph

On average August is the 2nd wettest month of the year in St. Catharines with around 78mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.7 hours of sunshine per day.

August temperatures in St. Catharines

St. Catharines average temperature in August

August rainfall

St. Catharines average rain in August

August hourly sunshine

St. Catharines average rain in August

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in St. Catharines in August 2024.

Other monthly averages

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St. Catharines weather stats

St. Catharines weather statistics
Hottest month: July 26.7°C 80.1°F
Driest month: January 50mm 2ins
Sunniest month: July 9.9hrs
Coldest month: January -0.7°C 30.7°F
Wettest month: September 84mm 3.3ins
Map showing location of St. Catharines (43.16681, -79.24958) St. Catharines map pin © Google

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