Last updated: June 18, 2025
In August, the average temperature in Chateauguay, Canada is a pleasant 21°C (71°F). During this time, temperatures can dip as low as 10°C (50°F) and soar to a maximum of 32°C (89°F). Expect to encounter about 98 mm (3.9 in) of precipitation spread over 13 days, with a notable average humidity of 75%. It's a month where the weather can be quite dynamic, so be prepared for a mix of warmth and occasional showers!
In August, in Chateauguay, the average temperature is 21°C (71°F), with maximums reaching 32°C (89°F) and minimums dipping as low as 10°C (50°F). This makes Chateauguay a great destination for travelers looking to enjoy mild weather and pleasant conditions during this time of year.
In Chateauguay in August, the precipitation amount is 98 mm (3.9 in) over a span of 13 days.
In Chateauguay in August, humidity is 75%. With an average temperature of 21°C (71°F), this humidity feels like a warm blanket wrapping around you, making travel slightly uncomfortable but offering a lush, vibrant atmosphere that invites exploration at a leisurely pace.
In Chateauguay in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Chateauguay.
UV Risk Categories
Weather in Chateauguay varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Chateauguay, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (18°F) | 84 mm (3.3 inches) | 93% | low |
| February Weather | -7°C (20°F) | 85 mm (3.3 inches) | 92% | moderate |
| March Weather | -2°C (29°F) | 85 mm (3.3 inches) | 86% | moderate |
| April Weather | 6°C (42°F) | 120 mm (4.7 inches) | 85% | high |
| May Weather | 13°C (56°F) | 96 mm (3.8 inches) | 80% | very high |
| June Weather | 19°C (67°F) | 97 mm (3.8 inches) | 74% | very high |
| July Weather | 22°C (73°F) | 89 mm (3.5 inches) | 76% | very high |
| August Weather | 21°C (71°F) | 98 mm (3.9 inches) | 75% | very high |
| September Weather | 17°C (62°F) | 69 mm (2.7 inches) | 78% | high |
| October Weather | 10°C (51°F) | 132 mm (5.2 inches) | 86% | moderate |
| November Weather | 2°C (36°F) | 115 mm (4.5 inches) | 88% | moderate |
| December Weather | -4°C (24°F) | 89 mm (3.5 inches) | 89% | low |