Courtenay
September
Weather in Courtenay for September 2025
Your guide to Courtenay weather in September - trends and predictions
In general, the average temperature in Courtenay at the beginning of September is 20.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.7 °C by the end of September.
The climate of Courtenay in September is notably wet, with an average of 11 rainy days.
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19
Dry days
11
Rainy days
0
Snow days
17°/11°
Temperatures
15 km/h
Avg max wind
78 %
Avg humidity
Courtenay in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2 22° | 3  18° | 4 19° | 5  20° | 6  20° | 7  21° |
| 8 19° | 9 19° | 10 18° | 11 18° | 12 16° | 13 16° | 14 18° |
| 15 19° | 16 17° | 17  16° | 18 16° | 19 15° | 20 15° | 21 16° |
| 22 18° | 23 15° | 24 15° | 25  15° | 26 13° | 27  14° | 28 13° |
| 29  13° | 30 13° |
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Temperatures trend during September in Courtenay
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 | 23° /14° | 0 mm | 6 | |
| 2 Sept. | Sunny | 22° /13° | 0 mm | 6 | |
| 3 Sept. | Overcast | 18° /12° | 0 mm | 4 | |
| 4 Sept. | Overcast | 19° /11° | 0 mm | 5 | |
| 5 Sept. | Patchy rain possible | 20° /13° | 1 mm | 5 | |
| 6 Sept. | Cloudy | 20° /13° | 0 mm | 5 | |
| 7 Sept. | Mist | 21° /13° | 0 mm | 5 | |
| 8 Sept. | Mist | 19° /13° | 0 mm | 5 | |
| 9 Sept. | Mist | 19° /12° | 0 mm | 4 | |
| 10 Sept. | Patchy rain possible | 18° /12° | 0.2 mm | 5 | |
| 11 Sept. | Patchy rain possible | 18° /12° | 0.1 mm | 4 | |
| 12 Sept. | Mist | 16° /10° | 1.1 mm | 4 | |
| 13 Sept. | Mist | 16° /11° | 1.4 mm | 4 | |
| 14 Sept. | Sunny | 18° /11° | 6.1 mm | 5 | |
| 15 Sept. | Sunny | 19° /11° | 0.1 mm | 6 | |
| 16 Sept. | Overcast | 17° /10° | 0 mm | 5 | |
| 17 Sept. | Light drizzle | 16° /12° | 13.5 mm | 4 | |
| 18 Sept. | Overcast | 16° /10° | 1.5 mm | 5 | |
| 19 Sept. | Mist | 15° /10° | 0 mm | 4 | |
| 20 Sept. | Sunny | 15° /8° | 0 mm | 5 | |
| 21 Sept. | Sunny | 16° /10° | 0 mm | 4 | |
| 22 Sept. | Sunny | 18° /11° | 0 mm | 5 | |
| 23 Sept. | Light rain shower | 15° /12° | 1.3 mm | 4 | |
| 24 Sept. | Patchy light drizzle | 15° /11° | 9.6 mm | 4 | |
| 25 Sept. | Moderate or heavy rain with thunder | 15° /11° | 36.5 mm | 4 | |
| 26 Sept. | Light rain shower | 13° /11° | 21.5 mm | 3 | |
| 27 Sept. | Moderate rain | 14° /10° | 11 mm | 3 | |
| 28 Sept. | Light rain shower | 13° /8° | 1.8 mm | 3 | |
| 29 Sept. | Partly cloudy | 13° /6° | 0 mm | 4 | |
| 30 Sept. | Cloudy | 13° /7° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Courtenay 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 Courtenay forecast closer to your planned date for the most up-to-date weather information.
Courtenay in September - FAQ
What are the expected maximum and minimum temperatures in Courtenay during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Courtenay during September?
Significant rainfall exceeding 138.9 mm is expected in Courtenay during September, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Courtenay during September?
The average wind speed in Courtenay during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Courtenay
Explore the daily rainfall trends and prepare for Courtenays September weather 💧
UV exposure in Courtenay during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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