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Canada weather

Weather in Delta for September 2025

Your guide to Delta weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Delta is slightly cooler than the historical average by -0.6 °C.

  • Expect cooler weather in the next days in Delta with the forecast suggesting a temperature of 18.9 °C, lower than the historical average.

  • In general, the average temperature in Delta at the beginning of September is 22.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.1 °C by the end of September.

    • Rain 🌧️

  • Delta experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 97 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
21
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/11°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Delta Weather September

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

Temperatures trend during September in Delta

See the weather trend as well as the moving average line

September weather in Delta 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
 24° /14° 0 mm 6
3 Sept. Light rain shower
Light rain shower
 21° /14° 0.5 mm 5
4 Sept. Overcast
Overcast
 22° /13° 0 mm 5
5 Sept. Overcast
Overcast
 25° /14° 0 mm 6
6 Sept. Partly cloudy
Partly cloudy
 23° /13° 0 mm 6
7 Sept. Cloudy
Cloudy
 21° /13° 8.3 mm 5
8 Sept. Mist
Mist
 20° /12° 0 mm 5
9 Sept. Mist
Mist
 20° /13° 0 mm 4
10 Sept. Overcast
Overcast
 20° /13° 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
 17° /12° 0.5 mm 4
14 Sept. Mist
Mist
 18° /13° 0 mm 0.5
15 Sept. Mist
Mist
 20° /14° 0 mm 1.1
16 Sept. Sunny
Sunny
 30° /14° 0 mm 1.2
17 Sept. Sunny
Sunny
 22° /14° 0 mm 1
18 Sept. Sunny
Sunny
 21° /12° 0 mm 0
19 Sept. Sunny
Sunny
 22° /13° 0 mm 5
20 Sept. Sunny
Sunny
 22° /13° 0 mm 5
21 Sept. Partly cloudy
Partly cloudy
 20° /13° 0 mm 5
22 Sept. Patchy rain possible
Patchy rain possible
 19° /13° 0.7 mm 4
23 Sept. Moderate rain
Moderate rain
 14° /12° 12.5 mm 3
24 Sept. Patchy rain possible
Patchy rain possible
 17° /11° 4.7 mm 3
25 Sept. Patchy rain possible
Patchy rain possible
 14° /10° 4 mm 3
26 Sept. Moderate rain
Moderate rain
 11° /7° 12.7 mm 2
27 Sept. Patchy rain possible
Patchy rain possible
 14° /7° 0.1 mm 3
28 Sept. Light rain shower
Light rain shower
 13° /8° 8.1 mm 3
29 Sept. Mist
Mist
 14° /6° 0 mm 4
30 Sept. Mist
Mist
 16° /5° 0 mm 4
Next
Important Notice
Our weather forecast for Delta 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 Delta forecast closer to your planned date for the most up-to-date weather information.
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Delta in September - FAQ

What are the expected maximum and minimum temperatures in Delta during September?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Delta during September?
Moderate rainfall is anticipated in Delta during September, with a total of 97 mm spread over approximately 9 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Delta during September?
The average wind speed in Delta during September is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Delta

Explore the daily rainfall trends and prepare for Deltas September weather 💧

UV exposure in Delta during September

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

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Location coordinates Where is Delta?

Get accurate weather forecasts for Delta, located at latitude 49.144 and longitude -122.907. Stay updated with localized weather information tailored for Delta.

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