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Weather in Windsor for September 2026

Your guide to Windsor weather in September - trends and predictions

    Temperatures

  • So far, September 2026 in Windsor shows a warmer trend than usual by 3.5 °C.

  • Expect cooler weather in the next days in Windsor with the forecast suggesting a temperature of 23.5 °C, lower than the historical average.

  • In general, the average temperature in Windsor at the beginning of September is 27.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.6 °C by the end of September.

    • Rain 🌧️

  • Windsor experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 68.8 mm.

    • More

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Average dry days
20
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
25°/16°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
67 %
Avg humidity

Windsor Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Mist
28°
2
Mist
29°
3
Sunny
31°
4
Partly cloudy
27°
5
Sunny
28°
6
Light rain shower
24°
7
Cloudy
24°
8
Overcast
24°
9
Partly cloudy
25°
10
Overcast
27°
11
Sunny
25°
12
Sunny
27°
13
Overcast
29°
14
Overcast
24°
15
Patchy rain possible
33°
16
Overcast
25°
17
Overcast
22°
18
Sunny
16°
19
Sunny
18°
20
Sunny
19°
21
Sunny
22°
22
Cloudy
22°
23
Mist
20°
24
Cloudy
23°
25
Light rain
22°
26
Light rain shower
24°
27
Overcast
23°
28
Moderate or heavy rain with thunder
20°
29
Fog
23°
30
Mist
23°

Temperatures trend during September in Windsor

See the weather trend as well as the moving average line

September weather in Windsor day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Mist
Mist
 28° /16° 0.2 mm 6
2 Sept. Mist
Mist
 29° /16° 3.7 mm 6
3 Sept. Sunny
Sunny
 31° /18° 59.3 mm 7
4 Sept. Partly cloudy
Partly cloudy
 27° /17° 24.8 mm 6
5 Sept. Sunny
Sunny
 28° /17° 0 mm 6
6 Sept. Light rain shower
Light rain shower
 24° /15° 2.4 mm 6
7 Sept. Cloudy
Cloudy
 24° /14° 1.1 mm 6
8 Sept. Overcast
Overcast
 24° /12° 0 mm 5
9 Sept. Partly cloudy
Partly cloudy
 25° /15° 7.5 mm 5
10 Sept. Overcast
Overcast
 27° /19° 0 mm 6
11 Sept. Sunny
Sunny
 25° /16° 0 mm 6.4
12 Sept. Sunny
Sunny
 27° /18° 0 mm 6.3
13 Sept. Overcast
Overcast
 29° /20° 0 mm 4.9
14 Sept. Overcast
Overcast
 24° /17° 0.2 mm 5
15 Sept. Patchy rain possible
Patchy rain possible
 33° /22° 3.7 mm 8
16 Sept. Overcast
Overcast
 25° /16° 4.5 mm 6
17 Sept. Overcast
Overcast
 22° /15° 0 mm 6
18 Sept. Sunny
Sunny
 16° /8° 0 mm 5
19 Sept. Sunny
Sunny
 18° /9° 0 mm 5
20 Sept. Sunny
Sunny
 19° /9° 0 mm 5
21 Sept. Sunny
Sunny
 22° /13° 0 mm 6
22 Sept. Cloudy
Cloudy
 22° /14° 15 mm 5
23 Sept. Mist
Mist
 20° /13° 0.1 mm 5
24 Sept. Cloudy
Cloudy
 23° /16° 2.5 mm 5
25 Sept. Light rain
Light rain
 22° /17° 2.3 mm 5
26 Sept. Light rain shower
Light rain shower
 24° /15° 0.2 mm 6
27 Sept. Overcast
Overcast
 23° /16° 0.8 mm 5
28 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 20° /16° 5.7 mm 5
29 Sept. Fog
Fog
 23° /15° 0.2 mm 5
30 Sept. Mist
Mist
 23° /15° 0 mm 5
Next
Important Notice
Our weather forecast for Windsor 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 Windsor forecast closer to your planned date for the most up-to-date weather information.
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Windsor in September - FAQ

What are the expected maximum and minimum temperatures in Windsor during September?
During September, expect a variety of temperatures with highs around 25° and lows near 16°, suitable for diverse activities and preferences.

How much rainfall should be expected in Windsor during September?
Moderate rainfall is anticipated in Windsor during September, with a total of 68.8 mm spread over approximately 10 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Windsor during September?
The average wind speed in Windsor during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Windsor

Explore the daily rainfall trends and prepare for Windsors September weather 💧
Typically, Windsor has 10 rainy days in September with a total of 68.8 mm of rainfall.

UV exposure in Windsor during September

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

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Location coordinates Where is Windsor?

Get accurate weather forecasts for Windsor, located at latitude 42.3 and longitude -83.017. Stay updated with localized weather information tailored for Windsor.

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