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Weather in Regional District of Okanagan-Similkameen for September 2025

Your guide to Regional District of Okanagan-Similkameen weather in September - trends and predictions
  • In general, the average temperature in Regional District of Okanagan-Similkameen at the beginning of September is 28.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.1 °C by the end of September.

  • With an average of 5 rainy days, Regional District of Okanagan-Similkameen experiences minimal rainfall in September, ensuring that most days remain pleasantly dry.

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Average dry days
25
Dry days
Average rainy days
5
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/1°
Temperatures
Average wind speed
11 km/h
Avg max wind
Average humidity
58 %
Avg humidity

Regional District of Okanagan-Similkameen in September average weather

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Temperatures trend during September in Regional District of Okanagan-Similkameen

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. Overcast
Overcast
29° /5° 0 mm 7
2 Sept. Partly cloudy
Partly cloudy
30° /9° 1.5 mm 7
3 Sept. Overcast
Overcast
25° /6° 0 mm 6
4 Sept. Cloudy
Cloudy
27° /3° 0 mm 7
5 Sept. Cloudy
Cloudy
28° /4° 0 mm 7
6 Sept. Sunny
Sunny
29° /4° 0 mm 7
7 Sept. Sunny
Sunny
29° /4° 0 mm 7
8 Sept. Sunny
Sunny
30° /7° 0 mm 8
9 Sept. Sunny
Sunny
27° /10° 0 mm 7
10 Sept. Sunny
Sunny
26° /6° 0 mm 7
11 Sept. Overcast
Overcast
21° /4° 2.5 mm 5
12 Sept. Overcast
Overcast
24° /6° 0 mm 6
13 Sept. Overcast
Overcast
24° /0° 0.1 mm 6
14 Sept. Sunny
Sunny
23° /2° 0.2 mm 6
15 Sept. Sunny
Sunny
25° /4° 0.3 mm 6
16 Sept. Cloudy
Cloudy
26° /4° 0 mm 6
17 Sept. Cloudy
Cloudy
23° /8° 0 mm 6
18 Sept. Patchy rain possible
Patchy rain possible
21° /6° 0.1 mm 5
19 Sept. Overcast
Overcast
17° /4° 0 mm 5
20 Sept. Light freezing rain
Light freezing rain
14° /-3° 1.1 mm 4
21 Sept. Sunny
Sunny
20° /1° 0 mm 5
22 Sept. Sunny
Sunny
21° /2° 0 mm 5
23 Sept. Patchy rain possible
Patchy rain possible
20° /5° 0 mm 5
24 Sept. Patchy rain possible
Patchy rain possible
21° /8° 0 mm 6
25 Sept. Light rain
Light rain
19° /3° 3.2 mm 5
26 Sept. Light freezing rain
Light freezing rain
14° /3° 1.4 mm 4
27 Sept. Light freezing rain
Light freezing rain
16° /3° 2.2 mm 4
28 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
15° /-1° 5.8 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
13° /0° 0.1 mm 4
30 Sept. Patchy rain possible
Patchy rain possible
15° /-5° 0 mm 4
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Important Notice
Our weather forecast for Regional District of Okanagan-Similkameen 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 Regional District of Okanagan-Similkameen forecast closer to your planned date for the most up-to-date weather information.

Regional District of Okanagan-Similkameen in September - FAQ

What are the expected maximum and minimum temperatures in Regional District of Okanagan-Similkameen during September?
During September, expect a variety of temperatures with highs around 22° and lows near 1°, suitable for diverse activities and preferences.
How much rainfall should be expected in Regional District of Okanagan-Similkameen during September?
In September, Regional District of Okanagan-Similkameen can expect light to moderate rainfall, totaling 23.6 mm across approximately 5 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Regional District of Okanagan-Similkameen during September?
The average wind speed in Regional District of Okanagan-Similkameen during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Regional District of Okanagan-Similkameen

Explore the daily rainfall trends and prepare for Regional District of Okanagan-Similkameens September weather 💧

UV exposure in Regional District of Okanagan-Similkameen during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Regional District of Okanagan-Similkameen?

Get accurate weather forecasts for Regional District of Okanagan-Similkameen, located at latitude 49.481 and longitude -119.586. Stay updated with localized weather information tailored for Regional District of Okanagan-Similkameen.

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