St. Thomas Weather in August

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

The climate in St. Thomas during August can be summarized as warm and a little damp.

August is in the summer in St. Thomas and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 14°C (57°F) is normal.

St. Thomas weather averages (imperial / metric)
Daytime temperature 25°C 76.9°F
Nightly temperature 14.1°C 57.3°F
Average temperature 19.5°C 67.1°F
Daily sunshine 8.3 hrs
Avg rainfall 94 mm 3.7 ins
Rainy days 10 days
Sea temperature 22.6°C 72.7°F
Humidity 76%
Windspeed 11.2kph 7 mph

On average August is the 2nd wettest month of the year in St. Thomas with around 94mm 3.7 inches of rain making it a a little damp 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 8.3 hours of sunshine per day.

August temperatures in St. Thomas

St. Thomas average temperature in August

August rainfall

St. Thomas average rain in August

August hourly sunshine

St. Thomas 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. Thomas in August 2024.

Other monthly averages

Best places to visit in August

UV index Best time to go?

St. Thomas weather stats

St. Thomas weather statistics
Hottest month: July 25.6°C 78.1°F
Driest month: February 55mm 2.2ins
Sunniest month: July 9.6hrs
Coldest month: January -2.3°C 27.9°F
Wettest month: December 94mm 3.7ins
Map showing location of St. Thomas (42.77361, -81.18038) St. Thomas map pin © Google

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