easeweather.com

Weather in Sydney for September 2025

Your guide to Sydney weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Sydney at the beginning of September is 21.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17 °C by the end of September.

  • Rain 🌧️

  • The climate of Sydney in September is notably wet, with an average of 13 rainy days, and a total of 121.4 mm of precipitation.

  • More

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

Average dry days
17
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/12°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Sydney in September average weather

Move between months or click on a day
Select a date

You can click on date

Access Sydney weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Got it

Temperatures trend during September in Sydney

See the weather trend as well as the moving average line

September weather day by day

Click on a date for more information
Date Weather Temperatures Rain UV More
1 Sept. Cloudy
Cloudy
21° /12° 0 mm 5
2 Sept. Partly cloudy
Partly cloudy
22° /11° 2.3 mm 6
3 Sept. Partly cloudy
Partly cloudy
21° /11° 0.5 mm 5
4 Sept. Fog
Fog
22° /11° 0 mm 5
5 Sept. Light drizzle
Light drizzle
21° /12° 0.3 mm 5
6 Sept. Light rain shower
Light rain shower
22° /15° 3.5 mm 5
7 Sept. Light rain shower
Light rain shower
20° /16° 15 mm 5
8 Sept. Fog
Fog
24° /17° 1.2 mm 6
9 Sept. Fog
Fog
23° /15° 1.8 mm 6
10 Sept. Mist
Mist
22° /13° 1.2 mm 5
11 Sept. Light rain shower
Light rain shower
18° /12° 2.5 mm 4
12 Sept. Fog
Fog
19° /12° 0 mm 4
13 Sept. Fog
Fog
22° /13° 0 mm 5
14 Sept. Light rain
Light rain
19° /13° 0.7 mm 5
15 Sept. Moderate rain at times
Moderate rain at times
20° /11° 3.8 mm 5
16 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
22° /13° 5.8 mm 5
17 Sept. Light rain
Light rain
22° /16° 1.6 mm 5
18 Sept. Mist
Mist
24° /14° 0 mm 6
19 Sept. Heavy rain
Heavy rain
21° /13° 21.5 mm 5
20 Sept. Patchy rain possible
Patchy rain possible
18° /13° 0.1 mm 4
21 Sept. Light drizzle
Light drizzle
14° /11° 0.5 mm 3
22 Sept. Patchy rain possible
Patchy rain possible
14° /9° 0.1 mm 3
23 Sept. Cloudy
Cloudy
17° /9° 0 mm 4
24 Sept. Cloudy
Cloudy
18° /10° 0 mm 5
25 Sept. Light rain shower
Light rain shower
15° /10° 0.3 mm 4
26 Sept. Overcast
Overcast
16° /8° 0 mm 4
27 Sept. Overcast
Overcast
16° /9° 13 mm 4
28 Sept. Fog
Fog
18° /10° 45.7 mm 5
29 Sept. Mist
Mist
18° /8° 0 mm 4
30 Sept. Mist
Mist
18° /8° 0 mm 5
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.

Sydney in September - FAQ

What are the expected maximum and minimum temperatures in Sydney during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 12°. 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 121.4 mm is expected in Sydney during September, occurring over more than 13 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 19 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 💧

UV exposure in Sydney during September

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

Quick links

Location coordinates Where is Sydney?

Get accurate weather forecasts for Sydney, located at latitude 46.135 and longitude -60.183. Stay updated with localized weather information tailored for Sydney.

Related locations
Select a location for accurate weather forecast
More Locations
Found a mistake?
We appreciate your attention to details. Tell us here.