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Weather in New Westminster for September 2026

Your guide to New Westminster weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in New Westminster at the beginning of September is 23 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.7 °C by the end of September.

    • Rain 🌧️

  • The climate of New Westminster in September is notably wet, with an average of 14 rainy days, and a total of 154 mm of precipitation.

    • More

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Average dry days
16
Dry days
Average rainy days
14
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/12°
Temperatures
Average wind speed
9 km/h
Avg max wind
Average humidity
80 %
Avg humidity

New Westminster Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Partly cloudy
23°
2
Sunny
25°
3
Light rain shower
22°
4
Overcast
22°
5
Sunny
25°
6
Partly cloudy
23°
7
Cloudy
21°
8
Mist
20°
9
Mist
20°
10
Overcast
20°
11
Patchy rain possible
17°
12
Mist
16°
13
Mist
18°
14
Mist
19°
15
Partly cloudy
19°
16
Sunny
23°
17
Overcast
18°
18
Patchy rain possible
17°
19
Overcast
16°
20
Overcast
18°
21
Overcast
18°
22
Sunny
18°
23
Light rain shower
19°
24
Light drizzle
20°
25
Moderate or heavy rain with thunder
16°
26
Light rain shower
13°
27
Patchy rain possible
15°
28
Overcast
15°
29
Mist
14°
30
Mist
17°

Temperatures trend during September in New Westminster

See the weather trend as well as the moving average line

September weather in New Westminster day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Partly cloudy
Partly cloudy
 23° /13° 0 mm 6
2 Sept. Sunny
Sunny
 25° /14° 0 mm 6
3 Sept. Light rain shower
Light rain shower
 22° /15° 0.5 mm 5
4 Sept. Overcast
Overcast
 22° /14° 0 mm 6
5 Sept. Sunny
Sunny
 25° /15° 0 mm 6
6 Sept. Partly cloudy
Partly cloudy
 23° /14° 0 mm 6
7 Sept. Cloudy
Cloudy
 21° /13° 6.8 mm 5
8 Sept. Mist
Mist
 20° /12° 0 mm 5
9 Sept. Mist
Mist
 20° /12° 0 mm 4
10 Sept. Overcast
Overcast
 20° /12° 0 mm 4
11 Sept. Patchy rain possible
Patchy rain possible
 17° /12° 0.3 mm 4
12 Sept. Mist
Mist
 16° /10° 0 mm 4
13 Sept. Mist
Mist
 18° /12° 0.5 mm 4
14 Sept. Mist
Mist
 19° /11° 2.2 mm 4
15 Sept. Partly cloudy
Partly cloudy
 19° /10° 0.1 mm 5
16 Sept. Sunny
Sunny
 23° /11° 0 mm 6
17 Sept. Overcast
Overcast
 18° /12° 0 mm 4
18 Sept. Patchy rain possible
Patchy rain possible
 17° /11° 0.4 mm 4
19 Sept. Overcast
Overcast
 16° /11° 1.1 mm 4
20 Sept. Overcast
Overcast
 18° /10° 1 mm 4
21 Sept. Overcast
Overcast
 18° /9° 18.9 mm 4
22 Sept. Sunny
Sunny
 18° /9° 5.4 mm 4
23 Sept. Light rain shower
Light rain shower
 19° /11° 2.7 mm 5
24 Sept. Light drizzle
Light drizzle
 20° /12° 3 mm 5
25 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 16° /11° 22.9 mm 4
26 Sept. Light rain shower
Light rain shower
 13° /9° 18.2 mm 3
27 Sept. Patchy rain possible
Patchy rain possible
 15° /10° 14.3 mm 4
28 Sept. Overcast
Overcast
 15° /9° 5.4 mm 3
29 Sept. Mist
Mist
 14° /8° 39.5 mm 4
30 Sept. Mist
Mist
 17° /7° 10.7 mm 4
Next
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.
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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 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in New Westminster during September?

Significant rainfall exceeding 154 mm is expected in New Westminster during September, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in New Westminster during September?

The average wind speed in New Westminster during September is 9 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 💧
Typically, New Westminster has 14 rainy days in September with a total of 154 mm of rainfall.

UV exposure in New Westminster during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

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Location coordinates Where is New Westminster?

Get accurate weather forecasts for New Westminster, located at latitude 49.207 and longitude -122.911. Stay updated with localized weather information tailored for New Westminster.

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