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Weather in Sydney for September 2027

Your guide to Sydney weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Sydney at the beginning of September is 20.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.7 °C by the end of September.

    • Rain 🌧️

  • Sydney experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 133.1 mm.

    • More

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

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

Average dry days
21
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/11°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Sydney Weather September

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

Temperatures trend during September in Sydney

See the weather trend as well as the moving average line

September weather in Sydney day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Cloudy
Cloudy
 20° /12° 0.3 mm 4
2 Sept. Patchy rain possible
Patchy rain possible
 20° /11° 1.9 mm 4
3 Sept. Partly cloudy
Partly cloudy
 20° /11° 0.3 mm 4
4 Sept. Moderate rain
Moderate rain
 21° /13° 11.1 mm 4
5 Sept. Moderate rain
Moderate rain
 19° /13° 18.6 mm 4
6 Sept. Light rain
Light rain
 21° /15° 5.1 mm 4
7 Sept. Light rain
Light rain
 21° /16° 9.7 mm 4
8 Sept. Light rain
Light rain
 22° /16° 3.5 mm 5
9 Sept. Patchy rain possible
Patchy rain possible
 20° /13° 1.1 mm 4
10 Sept. Light rain
Light rain
 20° /12° 2.7 mm 4
11 Sept. Light rain
Light rain
 17° /13° 3.6 mm 3
12 Sept. Overcast
Overcast
 18° /12° 0 mm 4
13 Sept. Overcast
Overcast
 20° /12° 0 mm 4
14 Sept. Moderate rain
Moderate rain
 20° /14° 11.8 mm 4
15 Sept. Patchy rain possible
Patchy rain possible
 19° /12° 1.9 mm 5
16 Sept. Light rain
Light rain
 21° /12° 2.9 mm 5
17 Sept. Overcast
Overcast
 22° /13° 0.8 mm 4
18 Sept. Patchy rain possible
Patchy rain possible
 21° /13° 1.4 mm 4
19 Sept. Heavy rain
Heavy rain
 18° /12° 10.9 mm 4
20 Sept. Overcast
Overcast
 16° /10° 0.1 mm 4
21 Sept. Light drizzle
Light drizzle
 15° /10° 0.3 mm 3
22 Sept. Overcast
Overcast
 16° /9° 0.1 mm 4
23 Sept. Overcast
Overcast
 16° /9° 0 mm 4
24 Sept. Overcast
Overcast
 17° /10° 0 mm 4
25 Sept. Overcast
Overcast
 17° /8° 0.1 mm 3
26 Sept. Moderate rain
Moderate rain
 17° /10° 13.2 mm 3
27 Sept. Light rain
Light rain
 16° /10° 6.5 mm 3
28 Sept. Moderate rain
Moderate rain
 17° /9° 23.5 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 17° /10° 1.8 mm 4
30 Sept. Mist
Mist
 16° /10° 0.1 mm 3
Next
Important Notice
Our weather forecast for Sydney 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 Sydney forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Sydney in September - FAQ

What are the expected maximum and minimum temperatures in Sydney during September?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Sydney during September?
Significant rainfall exceeding 133.1 mm is expected in Sydney during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Sydney during September?
The average wind speed in Sydney during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Sydney

Explore the daily rainfall trends and prepare for Sydneys September weather 💧
Typically, Sydney has 9 rainy days in September with a total of 133.1 mm of rainfall.

UV exposure in Sydney during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Get accurate weather forecasts for Sydney, located at latitude 46.135 and longitude -60.183. Stay updated with localized weather information tailored for Sydney.

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