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Weather in Richmond Hill for September 2025

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

    Temperatures

  • In general, the average temperature in Richmond Hill at the beginning of September is 26.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.4 °C by the end of September.

    • Rain 🌧️

  • Richmond Hill experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 50.6 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°/14°
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
24°
2
Mist
23°
3
Thundery outbreaks possible
29°
4
Cloudy
30°
5
Partly cloudy
30°
6
Thundery outbreaks possible
29°
7
Light rain shower
20°
8
Overcast
21°
9
Overcast
22°
10
Overcast
23°
11
Overcast
24°
12
Light rain shower
25°
13
Overcast
22°
14
Cloudy
23°
15
Mist
25°
16
Overcast
26°
17
Light rain shower
23°
18
Mist
23°
19
Partly cloudy
23°
20
Partly cloudy
23°
21
Mist
24°
22
Mist
23°
23
Mist
21°
24
Sunny
21°
25
Overcast
23°
26
Overcast
22°
27
Overcast
19°
28
Patchy rain possible
18°
29
Mist
20°
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
 24° /13° 0.1 mm 6
2 Sept. Mist
Mist
 23° /12° 0.6 mm 6
3 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 29° /14° 0 mm 7
4 Sept. Cloudy
Cloudy
 30° /17° 0 mm 7
5 Sept. Partly cloudy
Partly cloudy
 30° /18° 0 mm 8
6 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 29° /19° 5.7 mm 6
7 Sept. Light rain shower
Light rain shower
 20° /13° 5.1 mm 5
8 Sept. Overcast
Overcast
 21° /9° 0 mm 5
9 Sept. Overcast
Overcast
 22° /11° 1.7 mm 5
10 Sept. Overcast
Overcast
 23° /13° 0 mm 6
11 Sept. Overcast
Overcast
 24° /14° 0.2 mm 5
12 Sept. Light rain shower
Light rain shower
 25° /14° 1.5 mm 6
13 Sept. Overcast
Overcast
 22° /13° 0 mm 6
14 Sept. Cloudy
Cloudy
 23° /13° 0 mm 6
15 Sept. Mist
Mist
 25° /12° 0 mm 6
16 Sept. Overcast
Overcast
 26° /14° 0 mm 6
17 Sept. Light rain shower
Light rain shower
 23° /14° 1 mm 5
18 Sept. Mist
Mist
 23° /12° 0 mm 6
19 Sept. Partly cloudy
Partly cloudy
 23° /10° 0 mm 6
20 Sept. Partly cloudy
Partly cloudy
 23° /9° 0 mm 6
21 Sept. Mist
Mist
 24° /15° 0 mm 5
22 Sept. Mist
Mist
 23° /14° 4.3 mm 5
23 Sept. Mist
Mist
 21° /14° 12 mm 5
24 Sept. Sunny
Sunny
 21° /13° 0 mm 5
25 Sept. Overcast
Overcast
 23° /14° 18.4 mm 5
26 Sept. Overcast
Overcast
 22° /13° 0 mm 6
27 Sept. Overcast
Overcast
 19° /10° 0 mm 5
28 Sept. Patchy rain possible
Patchy rain possible
 18° /13° 0 mm 4
29 Sept. Mist
Mist
 20° /15° 0 mm 5
30 Sept. Mist
Mist
 20° /13° 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 14°. 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 50.6 mm spread over approximately 8 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 💧

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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