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Canada weather

Weather in Kelowna for September 2026

Your guide to Kelowna weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Kelowna is slightly cooler than the historical average by 1.8 °C.

  • The forecast for the next days in Kelowna predicts a temperature of 18.6 °C, which is cooler than the historical average.

  • In general, the average temperature in Kelowna at the beginning of September is 26.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16 °C by the end of September.

    • Rain 🌧️

  • Kelowna experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 25.1 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
22°/9°
Temperatures
Average wind speed
9 km/h
Avg max wind
Average humidity
53 %
Avg humidity

Kelowna Weather September

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

Temperatures trend during September in Kelowna

See the weather trend as well as the moving average line

September weather in Kelowna day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 30° /14° 0 mm 6
2 Sept. Sunny
Sunny
 29° /13° 11 mm 6
3 Sept. Sunny
Sunny
 25° /12° 17.1 mm 6
4 Sept. Sunny
Sunny
 24° /12° 0.2 mm 6
5 Sept. Sunny
Sunny
 26° /12° 0.1 mm 6
6 Sept. Sunny
Sunny
 28° /12° 0.1 mm 7
7 Sept. Sunny
Sunny
 25° /13° 0.3 mm 5
8 Sept. Sunny
Sunny
 26° /12° 0 mm 6
9 Sept. Overcast
Overcast
 25° /12° 0 mm 5
10 Sept. Overcast
Overcast
 25° /11° 0.4 mm 6
11 Sept. Overcast
Overcast
 22° /11° 0 mm 4.3
12 Sept. Sunny
Sunny
 18° /7° 0 mm 4.3
13 Sept. Sunny
Sunny
 20° /7° 0 mm 4.8
14 Sept. Overcast
Overcast
 18° /8° 0 mm 4.3
15 Sept. Overcast
Overcast
 14° /8° 0.3 mm 3
16 Sept. Sunny
Sunny
 20° /7° 0 mm 6
17 Sept. Sunny
Sunny
 23° /9° 0 mm 6
18 Sept. Sunny
Sunny
 25° /11° 0 mm 6
19 Sept. Overcast
Overcast
 26° /14° 0 mm 6
20 Sept. Sunny
Sunny
 24° /11° 0 mm 6
21 Sept. Overcast
Overcast
 12° /7° 0.3 mm 3
22 Sept. Sunny
Sunny
 13° /3° 0 mm 4
23 Sept. Sunny
Sunny
 13° /3° 0 mm 4
24 Sept. Sunny
Sunny
 13° /1° 0.1 mm 4
25 Sept. Light drizzle
Light drizzle
 19° /8° 1.3 mm 4
26 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 15° /3° 1.2 mm 3
27 Sept. Light rain shower
Light rain shower
 17° /6° 2.4 mm 4
28 Sept. Overcast
Overcast
 18° /5° 2.1 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 14° /4° 1.7 mm 3
30 Sept. Patchy rain possible
Patchy rain possible
 16° /2° 3.9 mm 4
Next
Important Notice
Our weather forecast for Kelowna 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 Kelowna forecast closer to your planned date for the most up-to-date weather information.
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Kelowna in September - FAQ

What are the expected maximum and minimum temperatures in Kelowna during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Kelowna during September?
In September, Kelowna can expect light to moderate rainfall, totaling 25.1 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Kelowna during September?
The average wind speed in Kelowna during September is 9 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Kelowna

Explore the daily rainfall trends and prepare for Kelownas September weather 💧
Typically, Kelowna has 9 rainy days in September with a total of 25.1 mm of rainfall.

UV exposure in Kelowna during September

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

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Location coordinates Where is Kelowna?

Get accurate weather forecasts for Kelowna, located at latitude 49.883 and longitude -119.486. Stay updated with localized weather information tailored for Kelowna.

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