New Westminster
September
Weather in New Westminster for September 2025
Your guide to New Westminster weather in September - trends and predictions
In general, the average temperature in New Westminster at the beginning of September is 22.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.4 °C by the end of September.
The climate of New Westminster 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
19°/10°
Temperatures
11 km/h
Avg max wind
76 %
Avg humidity
New Westminster in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  25° | 2  25° | 3  19° | 4  20° | 5 22° | 6 22° | 7  23° |
| 8  21° | 9 20° | 10 20° | 11 18° | 12 17° | 13 17° | 14 20° |
| 15 20° | 16 19° | 17 16° | 18 16° | 19 13° | 20 18° | 21 19° |
| 22 19° | 23 17° | 24  20° | 25  17° | 26 13° | 27 15° | 28 13° |
| 29 14° | 30 16° |
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Temperatures trend during September in New Westminster
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. | Partly cloudy | 25° /13° | 0 mm | 7 | |
| 2 Sept. | Sunny | 25° /13° | 0 mm | 7 | |
| 3 Sept. | Light rain shower | 19° /13° | 0.8 mm | 4 | |
| 4 Sept. | Overcast | 20° /12° | 0 mm | 5 | |
| 5 Sept. | Overcast | 22° /13° | 0 mm | 6 | |
| 6 Sept. | Partly cloudy | 22° /12° | 0 mm | 6 | |
| 7 Sept. | Cloudy | 23° /13° | 0 mm | 6 | |
| 8 Sept. | Mist | 21° /12° | 0 mm | 6 | |
| 9 Sept. | Mist | 20° /12° | 0.1 mm | 5 | |
| 10 Sept. | Overcast | 20° /12° | 0 mm | 5 | |
| 11 Sept. | Patchy rain possible | 18° /11° | 0.5 mm | 5 | |
| 12 Sept. | Mist | 17° /10° | 0 mm | 4 | |
| 13 Sept. | Mist | 17° /12° | 0.8 mm | 4 | |
| 14 Sept. | Mist | 20° /10° | 2.6 mm | 5 | |
| 15 Sept. | Partly cloudy | 20° /10° | 0.1 mm | 5 | |
| 16 Sept. | Overcast | 19° /9° | 0 mm | 5 | |
| 17 Sept. | Overcast | 16° /10° | 0 mm | 4 | |
| 18 Sept. | Patchy rain possible | 16° /11° | 0.6 mm | 4 | |
| 19 Sept. | Overcast | 13° /10° | 1.6 mm | 3 | |
| 20 Sept. | Patchy rain possible | 18° /9° | 0.2 mm | 4 | |
| 21 Sept. | Overcast | 19° /8° | 0 mm | 5 | |
| 22 Sept. | Sunny | 19° /9° | 8.1 mm | 5 | |
| 23 Sept. | Light rain shower | 17° /11° | 4.1 mm | 4 | |
| 24 Sept. | Light drizzle | 20° /11° | 4.6 mm | 5 | |
| 25 Sept. | Moderate or heavy rain with thunder | 17° /12° | 34.4 mm | 4 | |
| 26 Sept. | Light rain shower | 13° /10° | 24.3 mm | 3 | |
| 27 Sept. | Patchy rain possible | 15° /10° | 6.2 mm | 4 | |
| 28 Sept. | Light rain shower | 13° /8° | 8.1 mm | 3 | |
| 29 Sept. | Mist | 14° /6° | 0 mm | 4 | |
| 30 Sept. | Mist | 16° /5° | 0 mm | 4 | |
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Important Notice
Our weather forecast for New Westminster 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 New Westminster forecast closer to your planned date for the most up-to-date weather information.
New Westminster in September - FAQ
What are the expected maximum and minimum temperatures in New Westminster 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 New Westminster during September?
Moderate rainfall is anticipated in New Westminster during September, with a total of 97.5 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in New Westminster during September?
The average wind speed in New Westminster during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in New Westminster
Explore the daily rainfall trends and prepare for New Westminsters September weather 💧
UV exposure in New Westminster during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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