Penticton
September
Weather in Penticton for September 2025
Your guide to Penticton weather in September - trends and predictions
In general, the average temperature in Penticton 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.
Penticton experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 18.6 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
23
Dry days
7
Rainy days
0
Snow days
22°/4°
Temperatures
11 km/h
Avg max wind
55 %
Avg humidity
Penticton in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | 2  30° | 3 25° | 4  27° | 5 28° | 6  29° | 7 29° |
| 8 30° | 9 27° | 10 26° | 11 21° | 12 24° | 13 24° | 14 23° |
| 15 25° | 16 26° | 17 23° | 18  21° | 19 17° | 20  14° | 21 20° |
| 22 21° | 23 20° | 24 21° | 25  19° | 26 14° | 27 16° | 28  15° |
| 29 13° | 30 15° |
You can click on date
Access Penticton weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Penticton
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Overcast | 29° /5° | 0 mm | 7 | |
| 2 Sept. | Partly cloudy | 30° /9° | 1.5 mm | 7 | |
| 3 Sept. | Overcast | 25° /6° | 0 mm | 6 | |
| 4 Sept. | Cloudy | 27° /3° | 0 mm | 7 | |
| 5 Sept. | Cloudy | 28° /4° | 0 mm | 7 | |
| 6 Sept. | Sunny | 29° /4° | 0 mm | 7 | |
| 7 Sept. | Sunny | 29° /4° | 0 mm | 7 | |
| 8 Sept. | Sunny | 30° /7° | 0 mm | 8 | |
| 9 Sept. | Sunny | 27° /10° | 0 mm | 7 | |
| 10 Sept. | Sunny | 26° /6° | 0 mm | 7 | |
| 11 Sept. | Overcast | 21° /4° | 2.5 mm | 5 | |
| 12 Sept. | Overcast | 24° /6° | 0 mm | 6 | |
| 13 Sept. | Overcast | 24° /0° | 0.1 mm | 6 | |
| 14 Sept. | Sunny | 23° /2° | 0.2 mm | 6 | |
| 15 Sept. | Sunny | 25° /4° | 0.3 mm | 6 | |
| 16 Sept. | Cloudy | 26° /4° | 0 mm | 6 | |
| 17 Sept. | Cloudy | 23° /8° | 0 mm | 6 | |
| 18 Sept. | Patchy rain possible | 21° /6° | 0.1 mm | 5 | |
| 19 Sept. | Overcast | 17° /4° | 0 mm | 5 | |
| 20 Sept. | Light freezing rain | 14° /-3° | 1.1 mm | 4 | |
| 21 Sept. | Sunny | 20° /1° | 0 mm | 5 | |
| 22 Sept. | Sunny | 21° /2° | 0 mm | 5 | |
| 23 Sept. | Patchy rain possible | 20° /5° | 0 mm | 5 | |
| 24 Sept. | Patchy rain possible | 21° /8° | 0 mm | 6 | |
| 25 Sept. | Light rain | 19° /3° | 3.2 mm | 5 | |
| 26 Sept. | Light freezing rain | 14° /3° | 1.4 mm | 4 | |
| 27 Sept. | Light freezing rain | 16° /3° | 2.2 mm | 4 | |
| 28 Sept. | Moderate or heavy rain with thunder | 15° /-1° | 5.8 mm | 4 | |
| 29 Sept. | Patchy rain possible | 13° /0° | 0.1 mm | 4 | |
| 30 Sept. | Patchy rain possible | 15° /-5° | 0 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Penticton 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 Penticton forecast closer to your planned date for the most up-to-date weather information.
Penticton in September - FAQ
What are the expected maximum and minimum temperatures in Penticton during September?
During September, expect a variety of temperatures with highs around 22° and lows near 4°, suitable for diverse activities and preferences.
How much rainfall should be expected in Penticton during September?
Expect minimal rainfall in Penticton during September, with a total of 18.6 mm over approximately 7 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Penticton during September?
The average wind speed in Penticton during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Penticton
Explore the daily rainfall trends and prepare for Pentictons September weather 💧
UV exposure in Penticton during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
You are here
Where is Penticton?Get accurate weather forecasts for Penticton, located at latitude 49.481 and longitude -119.586. Stay updated with localized weather information tailored for Penticton.
Found a mistake?
We appreciate your attention to details. Tell us here.