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Weather in Hornsby Shire for September 2025

Your guide to Hornsby Shire weather in September - trends and predictions
  • In general, the average temperature in Hornsby Shire at the beginning of September is 21.7 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 22.1 °C by the end of September.

  • Hornsby Shire sees moderate rainfall in September, averaging 8 rainy days.

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Average dry days
22
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/11°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
57 %
Avg humidity

Hornsby Shire in September average weather

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Temperatures trend during September in Hornsby Shire

See the weather trend as well as the moving average line

September weather day by day

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Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
20° /10° 1 mm 7
2 Sept. Cloudy
Cloudy
20° /9° 0.1 mm 6
3 Sept. Sunny
Sunny
17° /8° 0 mm 6
4 Sept. Partly cloudy
Partly cloudy
21° /7° 0 mm 7
5 Sept. Patchy rain possible
Patchy rain possible
24° /10° 0.8 mm 7
6 Sept. Sunny
Sunny
25° /11° 0 mm 8
7 Sept. Partly cloudy
Partly cloudy
25° /12° 0.1 mm 7
8 Sept. Patchy light rain
Patchy light rain
23° /11° 2.3 mm 7
9 Sept. Sunny
Sunny
21° /9° 0 mm 6
10 Sept. Sunny
Sunny
18° /7° 0 mm 6
11 Sept. Sunny
Sunny
21° /9° 0 mm 7
12 Sept. Partly cloudy
Partly cloudy
19° /10° 2.3 mm 6
13 Sept. Sunny
Sunny
19° /9° 0.3 mm 6
14 Sept. Sunny
Sunny
22° /8° 0.1 mm 7
15 Sept. Overcast
Overcast
21° /9° 0.2 mm 6
16 Sept. Sunny
Sunny
25° /9° 0 mm 8
17 Sept. Sunny
Sunny
25° /11° 0 mm 8
18 Sept. Sunny
Sunny
28° /10° 0 mm 9
19 Sept. Sunny
Sunny
29° /14° 0 mm 8
20 Sept. Sunny
Sunny
28° /14° 0 mm 8
21 Sept. Patchy rain possible
Patchy rain possible
22° /12° 0.2 mm 7
22 Sept. Light rain shower
Light rain shower
20° /11° 0.4 mm 6
23 Sept. Patchy rain possible
Patchy rain possible
23° /10° 0 mm 7
24 Sept. Partly cloudy
Partly cloudy
23° /10° 0 mm 7
25 Sept. Sunny
Sunny
27° /12° 0.1 mm 8
26 Sept. Patchy light drizzle
Patchy light drizzle
20° /11° 12.6 mm 6
27 Sept. Light rain shower
Light rain shower
18° /13° 2 mm 6
28 Sept. Patchy rain possible
Patchy rain possible
20° /13° 1.1 mm 6
29 Sept. Sunny
Sunny
24° /13° 0.7 mm 7
30 Sept. Sunny
Sunny
23° /12° 2 mm 7
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Important Notice
Our weather forecast for Hornsby Shire 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 Hornsby Shire forecast closer to your planned date for the most up-to-date weather information.

Hornsby Shire in September - FAQ

What are the expected maximum and minimum temperatures in Hornsby Shire 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 Hornsby Shire during September?
Expect minimal rainfall in Hornsby Shire during September, with a total of 12.6 mm over approximately 8 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Hornsby Shire during September?
The average wind speed in Hornsby Shire during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Hornsby Shire

Explore the daily rainfall trends and prepare for Hornsby Shires September weather 💧

UV exposure in Hornsby Shire during September

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

Get accurate weather forecasts for Hornsby Shire, located at latitude -33.702 and longitude 151.099. Stay updated with localized weather information tailored for Hornsby Shire.

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