Châteauguay
August
Weather in Châteauguay for August 2025
Your guide to Châteauguay weather in August - trends and predictions
In general, the average temperature in Châteauguay at the beginning of August is 25 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 22.1 °C by the end of August.
Expect significant rainfall in Châteauguay during August, with an average of 18 rainy days.
- New! Chat with our AI weatherman - it’s amazing and free.
13
Dry days
18
Rainy days
0
Snow days
23°/14°
Temperatures
17 km/h
Avg max wind
81 %
Avg humidity
Châteauguay in August average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  25° | 2  27° | 3  26° | ||||
| 4  27° | 5 23° | 6  24° | 7 23° | 8 24° | 9 23° | 10 23° |
| 11 22° | 12 22° | 13 25° | 14 25° | 15 25° | 16 26° | 17 25° |
| 18 24° | 19 19° | 20 21° | 21 18° | 22 21° | 23 23° | 24 25° |
| 25  20° | 26 22° | 27 24° | 28  22° | 29 25° | 30 22° | 31  20° |
You can click on date
Access Châteauguay weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during August in Châteauguay
See the weather trend as well as the moving average line
August weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. | Patchy rain possible | 25° /15° | 1.3 mm | 6 | |
| 2 Aug. | Cloudy | 27° /15° | 0 mm | 7 | |
| 3 Aug. | Heavy rain at times | 26° /18° | 11.2 mm | 6 | |
| 4 Aug. | Moderate or heavy rain shower | 27° /17° | 17.8 mm | 6 | |
| 5 Aug. | Patchy rain possible | 23° /15° | 6.6 mm | 6 | |
| 6 Aug. | Overcast | 24° /14° | 0 mm | 6 | |
| 7 Aug. | Moderate or heavy rain shower | 23° /13° | 16.5 mm | 6 | |
| 8 Aug. | Moderate or heavy rain shower | 24° /15° | 23.7 mm | 5 | |
| 9 Aug. | Cloudy | 23° /16° | 42.8 mm | 5 | |
| 10 Aug. | Moderate or heavy rain shower | 23° /16° | 14 mm | 5 | |
| 11 Aug. | Patchy rain possible | 22° /14° | 2.3 mm | 5 | |
| 12 Aug. | Moderate or heavy rain shower | 22° /13° | 6 mm | 5 | |
| 13 Aug. | Patchy rain possible | 25° /15° | 1 mm | 6 | |
| 14 Aug. | Overcast | 25° /15° | 0.4 mm | 6 | |
| 15 Aug. | Patchy rain possible | 25° /15° | 1.8 mm | 6 | |
| 16 Aug. | Moderate or heavy rain shower | 26° /18° | 3.4 mm | 6 | |
| 17 Aug. | Moderate rain at times | 25° /18° | 2.4 mm | 6 | |
| 18 Aug. | Moderate or heavy rain shower | 24° /16° | 19.9 mm | 6 | |
| 19 Aug. | Heavy rain at times | 19° /13° | 11.8 mm | 5 | |
| 20 Aug. | Patchy rain possible | 21° /12° | 3.7 mm | 5 | |
| 21 Aug. | Overcast | 18° /14° | 4.4 mm | 4 | |
| 22 Aug. | Patchy rain possible | 21° /12° | 3.6 mm | 5 | |
| 23 Aug. | Overcast | 23° /12° | 0 mm | 5 | |
| 24 Aug. | Overcast | 25° /14° | 2.1 mm | 6 | |
| 25 Aug. | Light drizzle | 20° /14° | 3.5 mm | 5 | |
| 26 Aug. | Light rain shower | 22° /15° | 4.1 mm | 5 | |
| 27 Aug. | Cloudy | 24° /14° | 0 mm | 6 | |
| 28 Aug. | Mist | 22° /12° | 3.8 mm | 5 | |
| 29 Aug. | Light rain shower | 25° /12° | 2.3 mm | 6 | |
| 30 Aug. | Light rain shower | 22° /12° | 1.4 mm | 5 | |
| 31 Aug. | Partly cloudy | 20° /12° | 4.3 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Châteauguay 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 Châteauguay forecast closer to your planned date for the most up-to-date weather information.
Châteauguay in August - FAQ
What are the expected maximum and minimum temperatures in Châteauguay during August?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Châteauguay during August?
Significant rainfall exceeding 227.8 mm is expected in Châteauguay during August, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Châteauguay during August?
The average wind speed in Châteauguay during August is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Châteauguay
Explore the daily rainfall trends and prepare for Châteauguays August weather 💧
UV exposure in Châteauguay during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Quick links
You are here
Where is Châteauguay?Get accurate weather forecasts for Châteauguay, located at latitude 45.383 and longitude -73.749. Stay updated with localized weather information tailored for Châteauguay.
Found a mistake?
We appreciate your attention to details. Tell us here.