Barrie
September
Weather in Barrie for September 2025
Your guide to Barrie weather in September - trends and predictions
In general, the average temperature in Barrie at the beginning of September is 24.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.9 °C by the end of September.
The climate of Barrie in September is notably wet, with an average of 11 rainy days, and a total of 95 mm of precipitation.
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Temperatures
Rain 🌧️
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19
Dry days
11
Rainy days
0
Snow days
22°/13°
Temperatures
16 km/h
Avg max wind
73 %
Avg humidity
Barrie in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2  21° | 3 27° | 4 29° | 5 30° | 6  25° | 7  18° |
| 8  19° | 9  21° | 10 22° | 11 23° | 12  23° | 13 22° | 14 23° |
| 15  24° | 16 25° | 17 21° | 18 21° | 19 21° | 20  22° | 21 23° |
| 22 23° | 23 20° | 24 20° | 25 22° | 26 20° | 27 18° | 28 19° |
| 29 21° | 30 19° |
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Temperatures trend during September in Barrie
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. | Partly cloudy | 23° /12° | 0 mm | 6 | |
| 2 Sept. | Patchy rain possible | 21° /11° | 0.2 mm | 6 | |
| 3 Sept. | Partly cloudy | 27° /13° | 1.1 mm | 7 | |
| 4 Sept. | Patchy rain possible | 29° /15° | 0.6 mm | 7 | |
| 5 Sept. | Partly cloudy | 30° /16° | 0 mm | 8 | |
| 6 Sept. | Thundery outbreaks possible | 25° /18° | 12.8 mm | 6 | |
| 7 Sept. | Moderate or heavy rain shower | 18° /12° | 11.4 mm | 5 | |
| 8 Sept. | Overcast | 19° /8° | 0.4 mm | 5 | |
| 9 Sept. | Cloudy | 21° /10° | 3.7 mm | 5 | |
| 10 Sept. | Overcast | 22° /12° | 0 mm | 5 | |
| 11 Sept. | Light rain shower | 23° /13° | 1 mm | 6 | |
| 12 Sept. | Heavy rain | 23° /14° | 17.6 mm | 6 | |
| 13 Sept. | Overcast | 22° /13° | 0 mm | 6 | |
| 14 Sept. | Cloudy | 23° /12° | 0 mm | 6 | |
| 15 Sept. | Mist | 24° /11° | 0 mm | 6 | |
| 16 Sept. | Mist | 25° /13° | 0 mm | 6 | |
| 17 Sept. | Light rain shower | 21° /14° | 1.5 mm | 5 | |
| 18 Sept. | Mist | 21° /9° | 0 mm | 5 | |
| 19 Sept. | Partly cloudy | 21° /10° | 0 mm | 5 | |
| 20 Sept. | Sunny | 22° /9° | 0 mm | 6 | |
| 21 Sept. | Mist | 23° /15° | 3.9 mm | 5 | |
| 22 Sept. | Mist | 23° /14° | 3.1 mm | 5 | |
| 23 Sept. | Fog | 20° /13° | 24.1 mm | 5 | |
| 24 Sept. | Partly cloudy | 20° /13° | 0 mm | 5 | |
| 25 Sept. | Overcast | 22° /13° | 13.7 mm | 5 | |
| 26 Sept. | Cloudy | 20° /12° | 0 mm | 5 | |
| 27 Sept. | Overcast | 18° /10° | 0 mm | 5 | |
| 28 Sept. | Overcast | 19° /11° | 0 mm | 4 | |
| 29 Sept. | Cloudy | 21° /14° | 0 mm | 5 | |
| 30 Sept. | Mist | 19° /12° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Barrie 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 Barrie forecast closer to your planned date for the most up-to-date weather information.
Barrie in September - FAQ
What are the expected maximum and minimum temperatures in Barrie during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Barrie during September?
Moderate rainfall is anticipated in Barrie during September, with a total of 95 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Barrie during September?
The average wind speed in Barrie during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Barrie
Explore the daily rainfall trends and prepare for Barries September weather 💧
UV exposure in Barrie during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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