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Weather in Richmond Hill for September 2026

Your guide to Richmond Hill weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Richmond Hill has been nearly identical to the historical average, with a temperature of 24.9 °C (showing only a slight deviation of 0.5 °C).

  • Expect cooler weather in the next days in Richmond Hill with the forecast suggesting a temperature of 21.1 °C, lower than the historical average.

  • In general, the average temperature in Richmond Hill at the beginning of September is 25.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.7 °C by the end of September.

    • Rain 🌧️

  • Richmond Hill experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 73 mm.

    • More

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

Average dry days
21
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/13°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
70 %
Avg humidity

Richmond Hill Weather September

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

Temperatures trend during September in Richmond Hill

See the weather trend as well as the moving average line

September weather in Richmond Hill day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Partly cloudy
Partly cloudy
 26° /14° 0.3 mm 6
2 Sept. Mist
Mist
 24° /14° 7.7 mm 5
3 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 28° /14° 0 mm 6
4 Sept. Sunny
Sunny
 26° /15° 7.2 mm 7
5 Sept. Sunny
Sunny
 27° /15° 0 mm 7
6 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 25° /16° 2.9 mm 6
7 Sept. Overcast
Overcast
 20° /13° 2.5 mm 4
8 Sept. Overcast
Overcast
 22° /10° 0 mm 4
9 Sept. Overcast
Overcast
 22° /12° 3.8 mm 4
10 Sept. Overcast
Overcast
 24° /13° 0.2 mm 6
11 Sept. Overcast
Overcast
 24° /13° 0.1 mm 6
12 Sept. Sunny
Sunny
 26° /11° 0.8 mm 6
13 Sept. Overcast
Overcast
 25° /14° 1.3 mm 5.6
14 Sept. Sunny
Sunny
 18° /11° 0 mm 5.6
15 Sept. Overcast
Overcast
 18° /13° 2.2 mm 4
16 Sept. Overcast
Overcast
 26° /18° 8.4 mm 6
17 Sept. Light rain shower
Light rain shower
 22° /16° 5.1 mm 5
18 Sept. Sunny
Sunny
 20° /13° 0 mm 6
19 Sept. Sunny
Sunny
 20° /12° 0 mm 6
20 Sept. Sunny
Sunny
 19° /12° 0 mm 5
21 Sept. Sunny
Sunny
 22° /14° 0 mm 6
22 Sept. Sunny
Sunny
 18° /11° 0 mm 5
23 Sept. Sunny
Sunny
 19° /9° 0 mm 5
24 Sept. Sunny
Sunny
 21° /10° 0 mm 6
25 Sept. Overcast
Overcast
 23° /14° 18.3 mm 5
26 Sept. Overcast
Overcast
 21° /13° 0 mm 5
27 Sept. Fog
Fog
 19° /12° 0 mm 4
28 Sept. Patchy rain possible
Patchy rain possible
 19° /12° 0 mm 4
29 Sept. Mist
Mist
 22° /12° 0 mm 5
30 Sept. Mist
Mist
 20° /12° 0 mm 5
Next
Important Notice
Our weather forecast for Richmond Hill 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 Richmond Hill forecast closer to your planned date for the most up-to-date weather information.
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Richmond Hill in September - FAQ

What are the expected maximum and minimum temperatures in Richmond Hill during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Richmond Hill during September?
Moderate rainfall is anticipated in Richmond Hill during September, with a total of 73 mm spread over approximately 9 days. Considering plans for rainy days is advisable.

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

September rainfall patterns in Richmond Hill

Explore the daily rainfall trends and prepare for Richmond Hills September weather 💧
Typically, Richmond Hill has 9 rainy days in September with a total of 73 mm of rainfall.

UV exposure in Richmond Hill during September

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

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Location coordinates Where is Richmond Hill?

Get accurate weather forecasts for Richmond Hill, located at latitude 43.871 and longitude -79.437. Stay updated with localized weather information tailored for Richmond Hill.

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