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Canada weather

Weather in Charlottetown for September 2026

Your guide to Charlottetown weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Charlottetown is cooler than usual, with temperatures averaging 17.2 °C, this is 3.3 °C below the typical seasonal average.

  • The forecast for the next days in Charlottetown predicts a temperature of 15.6 °C, which is cooler than the historical average.

  • In general, the average temperature in Charlottetown at the beginning of September is 20.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.1 °C by the end of September.

    • Rain 🌧️

  • Charlottetown experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 107.5 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
20
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/12°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
80 %
Avg humidity

Charlottetown Weather September

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

Temperatures trend during September in Charlottetown

See the weather trend as well as the moving average line

September weather in Charlottetown day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 21° /12° 0.1 mm 5
2 Sept. Sunny
Sunny
 21° /11° 6.2 mm 6
3 Sept. Overcast
Overcast
 21° /12° 0.1 mm 4
4 Sept. Overcast
Overcast
 21° /13° 79.3 mm 5
5 Sept. Overcast
Overcast
 20° /13° 119.4 mm 4
6 Sept. Overcast
Overcast
 21° /15° 29.2 mm 4
7 Sept. Moderate rain
Moderate rain
 19° /15° 34.1 mm 4
8 Sept. Overcast
Overcast
 21° /13° 5.7 mm 5
9 Sept. Overcast
Overcast
 19° /12° 0.1 mm 4
10 Sept. Light rain shower
Light rain shower
 21° /12° 29.6 mm 4
11 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 19° /12° 3.8 mm 5
12 Sept. Sunny
Sunny
 17° /9° 0 mm 4.3
13 Sept. Overcast
Overcast
 18° /13° 0.2 mm 4.7
14 Sept. Patchy rain possible
Patchy rain possible
 18° /10° 1.9 mm 2.8
15 Sept. Sunny
Sunny
 16° /9° 0 mm 5
16 Sept. Overcast
Overcast
 19° /10° 0 mm 5
17 Sept. Overcast
Overcast
 17° /10° 0.9 mm 4
18 Sept. Overcast
Overcast
 14° /7° 3.3 mm 3
19 Sept. Patchy rain possible
Patchy rain possible
 13° /9° 3.7 mm 3
20 Sept. Light rain
Light rain
 12° /8° 20.3 mm 3
21 Sept. Sunny
Sunny
 13° /5° 0 mm 4
22 Sept. Sunny
Sunny
 13° /4° 0 mm 4
23 Sept. Patchy rain possible
Patchy rain possible
 16° /9° 0.8 mm 4
24 Sept. Light rain shower
Light rain shower
 20° /14° 4 mm 6
25 Sept. Sunny
Sunny
 13° /8° 0 mm 4
26 Sept. Partly cloudy
Partly cloudy
 17° /10° 14.2 mm 5
27 Sept. Mist
Mist
 17° /10° 23.6 mm 4
28 Sept. Overcast
Overcast
 18° /10° 0 mm 4
29 Sept. Fog
Fog
 19° /9° 0 mm 5
30 Sept. Fog
Fog
 16° /10° 0 mm 3
Next
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.
Change Month
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Charlottetown in September - FAQ

What are the expected maximum and minimum temperatures in Charlottetown during September?
Enjoy moderate daytime temperatures of up to 19° 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?
Significant rainfall exceeding 107.5 mm is expected in Charlottetown during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.

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 💧
Typically, Charlottetown has 10 rainy days in September with a total of 107.5 mm of rainfall.

UV exposure in Charlottetown during September

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

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Get accurate weather forecasts for Charlottetown, located at latitude 46.235 and longitude -63.126. Stay updated with localized weather information tailored for Charlottetown.

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