St. Catharines
August
Weather in St. Catharines for August 2027
Your guide to St. Catharines weather in August - trends and predictions
In general, the average temperature in St. Catharines at the beginning of August is 26.2 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 23.3 °C by the end of August.
The climate of St. Catharines in August is notably wet, with an average of 11 rainy days, and a total of 154.8 mm of precipitation.
Is August a good time to visit St. Catharines? check out the best time to travel to St. Catharines page.
✨ Is August a good time to visit St. Catharines? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
20
Dry days
11
Rainy days
0
Snow days
25°/17°
Temperatures
21 km/h
Avg max wind
73 %
Avg humidity
St. Catharines Weather August
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Temperatures trend during August in St. Catharines
See the weather trend as well as the moving average line
August weather in St. Catharines day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Patchy rain possible | 27° /19° | 1.6 mm | 7 | |
| 2 Aug. |  Moderate rain | 26° /19° | 13.8 mm | 6 | |
| 3 Aug. | Patchy rain possible | 27° /18° | 2.4 mm | 7 | |
| 4 Aug. | Patchy rain possible | 27° /18° | 0.2 mm | 7 | |
| 5 Aug. |  Partly cloudy | 26° /18° | 0.4 mm | 7 | |
| 6 Aug. |  Moderate or heavy rain shower | 25° /18° | 5 mm | 7 | |
| 7 Aug. |  Light rain | 26° /18° | 5.2 mm | 7 | |
| 8 Aug. | Moderate or heavy rain shower | 26° /18° | 6.1 mm | 7 | |
| 9 Aug. | Light rain | 27° /18° | 3.7 mm | 7 | |
| 10 Aug. | Light rain | 26° /19° | 4.6 mm | 7 | |
| 11 Aug. | Partly cloudy | 27° /18° | 0.4 mm | 7 | |
| 12 Aug. | Moderate or heavy rain shower | 27° /18° | 5.5 mm | 7 | |
| 13 Aug. |  Overcast | 26° /19° | 0.8 mm | 7 | |
| 14 Aug. |  Sunny | 26° /18° | 0 mm | 7 | |
| 15 Aug. | Light rain | 25° /18° | 3.8 mm | 7 | |
| 16 Aug. |  Cloudy | 27° /19° | 0.3 mm | 6 | |
| 17 Aug. | Light rain | 26° /19° | 8.1 mm | 7 | |
| 18 Aug. | Light rain | 23° /16° | 3.7 mm | 6 | |
| 19 Aug. |  Heavy rain | 24° /15° | 45.2 mm | 5 | |
| 20 Aug. | Patchy rain possible | 23° /16° | 1.7 mm | 6 | |
| 21 Aug. | Overcast | 23° /16° | 0 mm | 6 | |
| 22 Aug. | Light rain | 24° /15° | 2.6 mm | 5 | |
| 23 Aug. |  Heavy rain at times | 24° /16° | 10.9 mm | 5 | |
| 24 Aug. | Patchy rain possible | 23° /17° | 2.1 mm | 4 | |
| 25 Aug. | Overcast | 24° /17° | 0.6 mm | 6 | |
| 26 Aug. | Overcast | 23° /15° | 0 mm | 6 | |
| 27 Aug. | Patchy rain possible | 25° /16° | 1 mm | 6 | |
| 28 Aug. | Moderate rain | 22° /14° | 16.9 mm | 6 | |
| 29 Aug. | Sunny | 23° /14° | 0 mm | 6 | |
| 30 Aug. | Light rain | 23° /15° | 3 mm | 4 | |
| 31 Aug. | Light rain | 24° /16° | 5.2 mm | 5 | |
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Important Notice
Our weather forecast for St. Catharines in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the St. Catharines forecast closer to your planned date for the most up-to-date weather information.
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St. Catharines in August - FAQ
What are the expected maximum and minimum temperatures in St. Catharines during August?
During August, expect a variety of temperatures with highs around 25° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in St. Catharines during August?
Significant rainfall exceeding 154.8 mm is expected in St. Catharines during August, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in St. Catharines during August?
The average wind speed in St. Catharines during August is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in St. Catharines
Explore the daily rainfall trends and prepare for St. Cathariness August weather 💧
Typically, St. Catharines has 11 rainy days in August with a total of 154.8 mm of rainfall.
UV exposure in St. Catharines during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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Where is St. Catharines?Get accurate weather forecasts for St. Catharines, located at latitude 43.171 and longitude -79.243. Stay updated with localized weather information tailored for St. Catharines.
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