Charlottetown
September
Weather in Charlottetown for September 2025
Your guide to Charlottetown weather in September - trends and predictions
In general, the average temperature in Charlottetown at the beginning of September is 21.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.7 °C by the end of September.
The climate of Charlottetown in September is notably wet, with an average of 12 rainy days.
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18
Dry days
12
Rainy days
0
Snow days
20°/12°
Temperatures
22 km/h
Avg max wind
85 %
Avg humidity
Charlottetown in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2 21° | 3  20° | 4  22° | 5 22° | 6  22° | 7  20° |
| 8 24° | 9  20° | 10 20° | 11  20° | 12 20° | 13 22° | 14  19° |
| 15 19° | 16 23° | 17  21° | 18 23° | 19  18° | 20 18° | 21 15° |
| 22 16° | 23  15° | 24 18° | 25 16° | 26 16° | 27 16° | 28 17° |
| 29 17° | 30 17° |
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Temperatures trend during September in Charlottetown
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. | Sunny | 21° /12° | 0 mm | 6 | |
| 2 Sept. | Sunny | 21° /12° | 1.1 mm | 5 | |
| 3 Sept. | Partly cloudy | 20° /12° | 0.1 mm | 5 | |
| 4 Sept. | Overcast | 22° /12° | 0 mm | 6 | |
| 5 Sept. | Overcast | 22° /13° | 0 mm | 6 | |
| 6 Sept. | Light rain shower | 22° /15° | 0.9 mm | 5 | |
| 7 Sept. | Fog | 20° /15° | 16.8 mm | 5 | |
| 8 Sept. | Fog | 24° /15° | 2.4 mm | 6 | |
| 9 Sept. | Thundery outbreaks possible | 20° /15° | 0.2 mm | 5 | |
| 10 Sept. | Light rain shower | 20° /13° | 0.9 mm | 5 | |
| 11 Sept. | Moderate or heavy rain shower | 20° /12° | 7.5 mm | 5 | |
| 12 Sept. | Overcast | 20° /12° | 0.5 mm | 5 | |
| 13 Sept. | Fog | 22° /14° | 0.8 mm | 6 | |
| 14 Sept. | Heavy rain | 19° /13° | 12.2 mm | 5 | |
| 15 Sept. | Mist | 19° /10° | 0 mm | 5 | |
| 16 Sept. | Light rain shower | 23° /14° | 10.8 mm | 6 | |
| 17 Sept. | Light drizzle | 21° /14° | 1 mm | 5 | |
| 18 Sept. | Overcast | 23° /14° | 0.2 mm | 5 | |
| 19 Sept. | Moderate rain | 18° /14° | 2.1 mm | 4 | |
| 20 Sept. | Patchy rain possible | 18° /12° | 0.3 mm | 4 | |
| 21 Sept. | Patchy rain possible | 15° /9° | 0.6 mm | 4 | |
| 22 Sept. | Patchy rain possible | 16° /7° | 0.1 mm | 4 | |
| 23 Sept. | Cloudy | 15° /9° | 0 mm | 4 | |
| 24 Sept. | Fog | 18° /9° | 0 mm | 4 | |
| 25 Sept. | Patchy rain possible | 16° /9° | 0.1 mm | 4 | |
| 26 Sept. | Partly cloudy | 16° /8° | 0 mm | 5 | |
| 27 Sept. | Mist | 16° /10° | 35.3 mm | 4 | |
| 28 Sept. | Fog | 17° /10° | 0 mm | 4 | |
| 29 Sept. | Fog | 17° /9° | 0 mm | 4 | |
| 30 Sept. | Fog | 17° /10° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Charlottetown 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 Charlottetown forecast closer to your planned date for the most up-to-date weather information.
Charlottetown in September - FAQ
What are the expected maximum and minimum temperatures in Charlottetown during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Charlottetown during September?
Moderate rainfall is anticipated in Charlottetown during September, with a total of 74.7 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Charlottetown during September?
The average wind speed in Charlottetown during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Charlottetown
Explore the daily rainfall trends and prepare for Charlottetowns September weather 💧
UV exposure in Charlottetown during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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