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Canada weather

Weather in Nepean for September 2027

Your guide to Nepean weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Nepean at the beginning of September is 24 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.2 °C by the end of September.

    • Rain 🌧️

  • With an average of 5 rainy days, Nepean experiences minimal rainfall in September.

    • More

  • Is September a good time to visit Nepean? check out the best time to travel to Nepean page.

  • ✨ Is September a good time to visit Nepean? – Ask the AI Weatherman

Average dry days
25
Dry days
Average rainy days
5
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/11°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Nepean Weather September

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

Temperatures trend during September in Nepean

See the weather trend as well as the moving average line

September weather in Nepean day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Heavy rain
Heavy rain
 24° /13° 42.9 mm 5
2 Sept. Patchy rain possible
Patchy rain possible
 24° /14° 1.2 mm 5
3 Sept. Sunny
Sunny
 25° /14° 0.1 mm 6
4 Sept. Patchy rain possible
Patchy rain possible
 25° /15° 1.4 mm 6.8
5 Sept. Mist
Mist
 25° /13° 0.9 mm 6
6 Sept. Overcast
Overcast
 24° /14° 0.1 mm 6
7 Sept. Light rain
Light rain
 21° /12° 4.3 mm 5
8 Sept. Moderate rain
Moderate rain
 18° /12° 21.6 mm 4
9 Sept. Light rain
Light rain
 22° /9° 4.8 mm 4
10 Sept. Overcast
Overcast
 22° /10° 0 mm 6
11 Sept. Overcast
Overcast
 23° /11° 0 mm 5
12 Sept. Overcast
Overcast
 23° /12° 0 mm 5
13 Sept. Overcast
Overcast
 21° /14° 0.5 mm 4
14 Sept. Mist
Mist
 20° /12° 0 mm 5
15 Sept. Partly cloudy
Partly cloudy
 22° /11° 0.1 mm 5
16 Sept. Overcast
Overcast
 24° /14° 0.1 mm 5
17 Sept. Cloudy
Cloudy
 24° /13° 0.3 mm 5
18 Sept. Fog
Fog
 22° /12° 0.5 mm 5
19 Sept. Overcast
Overcast
 20° /10° 0 mm 5
20 Sept. Overcast
Overcast
 20° /8° 0 mm 4
21 Sept. Overcast
Overcast
 19° /7° 0 mm 4
22 Sept. Overcast
Overcast
 20° /9° 0 mm 5
23 Sept. Patchy rain possible
Patchy rain possible
 20° /10° 2.2 mm 5
24 Sept. Mist
Mist
 21° /11° 0 mm 5
25 Sept. Heavy rain
Heavy rain
 18° /10° 42.1 mm 4
26 Sept. Patchy rain possible
Patchy rain possible
 21° /11° 1.2 mm 4
27 Sept. Cloudy
Cloudy
 20° /10° 0.3 mm 4
28 Sept. Partly cloudy
Partly cloudy
 20° /11° 0 mm 4
29 Sept. Mist
Mist
 22° /10° 0 mm 4.6
30 Sept. Partly cloudy
Partly cloudy
 20° /11° 0 mm 4
Next
Important Notice
Our weather forecast for Nepean 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 Nepean forecast closer to your planned date for the most up-to-date weather information.
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Nepean in September - FAQ

What are the expected maximum and minimum temperatures in Nepean during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Nepean during September?
Significant rainfall exceeding 124.6 mm is expected in Nepean during September, occurring over more than 5 days. Preparing for wet conditions is recommended in your planning.

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

September rainfall patterns in Nepean

Explore the daily rainfall trends and prepare for Nepeans September weather 💧
Typically, Nepean has 5 rainy days in September with a total of 124.6 mm of rainfall.

UV exposure in Nepean during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Nepean?

Get accurate weather forecasts for Nepean, located at latitude 45.336 and longitude -75.723. Stay updated with localized weather information tailored for Nepean.

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