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Weather in East Gwillimbury for September 2026

Your guide to East Gwillimbury weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in East Gwillimbury at the beginning of September is 24.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.7 °C by the end of September.

    • Rain 🌧️

  • East Gwillimbury experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 51.3 mm.

    • More

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Average dry days
22
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/12°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
73 %
Avg humidity

East Gwillimbury Weather September

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

Temperatures trend during September in East Gwillimbury

See the weather trend as well as the moving average line

September weather in East Gwillimbury day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Mist
Mist
 24° /10° 0 mm 5
2 Sept. Mist
Mist
 22° /11° 0.2 mm 5
3 Sept. Partly cloudy
Partly cloudy
 27° /12° 0.5 mm 6
4 Sept. Partly cloudy
Partly cloudy
 26° /14° 14.5 mm 6
5 Sept. Partly cloudy
Partly cloudy
 27° /13° 0 mm 7
6 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 25° /15° 4.7 mm 5
7 Sept. Light rain shower
Light rain shower
 19° /11° 4 mm 4
8 Sept. Overcast
Overcast
 20° /7° 0.1 mm 5
9 Sept. Mist
Mist
 23° /8° 1.6 mm 5
10 Sept. Mist
Mist
 23° /10° 0 mm 5
11 Sept. Patchy rain possible
Patchy rain possible
 24° /12° 0.3 mm 6
12 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 24° /13° 5.7 mm 6
13 Sept. Cloudy
Cloudy
 22° /12° 0 mm 5
14 Sept. Overcast
Overcast
 24° /12° 0 mm 6
15 Sept. Mist
Mist
 24° /11° 0 mm 6
16 Sept. Cloudy
Cloudy
 25° /11° 0 mm 6
17 Sept. Light rain shower
Light rain shower
 23° /12° 0.7 mm 5
18 Sept. Mist
Mist
 23° /10° 0 mm 5
19 Sept. Partly cloudy
Partly cloudy
 22° /9° 0 mm 5
20 Sept. Cloudy
Cloudy
 22° /6° 0 mm 6
21 Sept. Mist
Mist
 24° /12° 0 mm 5
22 Sept. Mist
Mist
 24° /13° 18.9 mm 5
23 Sept. Mist
Mist
 22° /14° 7.9 mm 5
24 Sept. Cloudy
Cloudy
 21° /13° 5.8 mm 5
25 Sept. Overcast
Overcast
 23° /14° 8.7 mm 5
26 Sept. Cloudy
Cloudy
 20° /12° 0 mm 5
27 Sept. Fog
Fog
 19° /11° 0 mm 4
28 Sept. Overcast
Overcast
 20° /11° 0 mm 4
29 Sept. Mist
Mist
 21° /11° 0 mm 5
30 Sept. Mist
Mist
 21° /11° 0 mm 5
Next
Important Notice
Our weather forecast for East Gwillimbury 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 East Gwillimbury forecast closer to your planned date for the most up-to-date weather information.
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East Gwillimbury in September - FAQ

What are the expected maximum and minimum temperatures in East Gwillimbury during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in East Gwillimbury during September?
Moderate rainfall is anticipated in East Gwillimbury during September, with a total of 51.3 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in East Gwillimbury during September?
The average wind speed in East Gwillimbury during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in East Gwillimbury

Explore the daily rainfall trends and prepare for East Gwillimburys September weather 💧

UV exposure in East Gwillimbury during September

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

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Location coordinates Where is East Gwillimbury?

Get accurate weather forecasts for East Gwillimbury, located at latitude 44.101 and longitude -79.438. Stay updated with localized weather information tailored for East Gwillimbury.

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