Coquitlam
September
Weather in Coquitlam for September 2025
Your guide to Coquitlam weather in September - trends and predictions
In general, the average temperature in Coquitlam at the beginning of September is 23.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.3 °C by the end of September.
The climate of Coquitlam in September is notably wet, with an average of 13 rainy days.
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17
Dry days
13
Rainy days
0
Snow days
19°/10°
Temperatures
10 km/h
Avg max wind
74 %
Avg humidity
Coquitlam in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2 25° | 3  19° | 4  21° | 5  24° | 6  24° | 7 25° |
| 8 23° | 9 21° | 10 21° | 11 17° | 12 16° | 13 17° | 14 21° |
| 15 21° | 16 21° | 17 16° | 18 17° | 19 13° | 20 17° | 21 20° |
| 22 19° | 23 17° | 24  20° | 25  17° | 26 13° | 27 14° | 28 13° |
| 29 14° | 30 16° |
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Temperatures trend during September in Coquitlam
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 28° /13° | 0 mm | 7 | |
| 2 Sept. | Sunny | 25° /14° | 0 mm | 6 | |
| 3 Sept. | Light rain shower | 19° /13° | 1 mm | 4 | |
| 4 Sept. | Fog | 21° /12° | 0.2 mm | 5 | |
| 5 Sept. | Overcast | 24° /13° | 0 mm | 6 | |
| 6 Sept. | Partly cloudy | 24° /12° | 0 mm | 6 | |
| 7 Sept. | Partly cloudy | 25° /13° | 0 mm | 7 | |
| 8 Sept. | Partly cloudy | 23° /12° | 0 mm | 6 | |
| 9 Sept. | Partly cloudy | 21° /12° | 0.1 mm | 5 | |
| 10 Sept. | Overcast | 21° /12° | 0 mm | 5 | |
| 11 Sept. | Patchy rain possible | 17° /10° | 0.2 mm | 4 | |
| 12 Sept. | Mist | 16° /10° | 0 mm | 4 | |
| 13 Sept. | Fog | 17° /11° | 1.1 mm | 4 | |
| 14 Sept. | Partly cloudy | 21° /10° | 3.7 mm | 6 | |
| 15 Sept. | Sunny | 21° /10° | 0.2 mm | 5 | |
| 16 Sept. | Overcast | 21° /9° | 0 mm | 5 | |
| 17 Sept. | Overcast | 16° /10° | 0.9 mm | 4 | |
| 18 Sept. | Patchy rain possible | 17° /10° | 0.4 mm | 4 | |
| 19 Sept. | Mist | 13° /10° | 3.1 mm | 3 | |
| 20 Sept. | Mist | 17° /9° | 0.2 mm | 4 | |
| 21 Sept. | Overcast | 20° /8° | 0 mm | 5 | |
| 22 Sept. | Sunny | 19° /10° | 7.2 mm | 5 | |
| 23 Sept. | Light rain shower | 17° /11° | 5.6 mm | 4 | |
| 24 Sept. | Light drizzle | 20° /10° | 5.7 mm | 5 | |
| 25 Sept. | Moderate or heavy rain with thunder | 17° /11° | 65.3 mm | 4 | |
| 26 Sept. | Moderate or heavy rain with thunder | 13° /10° | 37.2 mm | 3 | |
| 27 Sept. | Patchy rain possible | 14° /8° | 13.7 mm | 3 | |
| 28 Sept. | Light rain shower | 13° /7° | 10.4 mm | 4 | |
| 29 Sept. | Patchy rain possible | 14° /6° | 0 mm | 4 | |
| 30 Sept. | Partly cloudy | 16° /5° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Coquitlam in September 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 Coquitlam forecast closer to your planned date for the most up-to-date weather information.
Coquitlam in September - FAQ
What are the expected maximum and minimum temperatures in Coquitlam during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Coquitlam during September?
Significant rainfall exceeding 144.9 mm is expected in Coquitlam during September, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Coquitlam during September?
The average wind speed in Coquitlam during September is 10 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Coquitlam
Explore the daily rainfall trends and prepare for Coquitlams September weather 💧
UV exposure in Coquitlam during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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