Measurements:
°C
°F
Sydney
54°F
NW 9 mph
Feels like: 52°F
Precip: 17%
World Resorts Canada Sydney Weather September Weather in Sydney

Sydney Weather: September

Average Day Temperature: 67.1°F
Average Night Temperature: 57.4°F
Sea Water Temperature: 65.4°F
Number of Sunny Days: 7 days
Sunshine Hours: 11.8 - 13.3 hours
Number of Rainy Days: 4 days
Precipitation Totals: 1.8 in

Air Temperature in September, °F

Select Year: 2026 2025 2024

The highest day temperature in September 2026 was 71°F. The lowest night temperature was 42°F. The average values for day and night temperatures during September were 62.1°F и 53.0°F respectivly.

Sydney Water Sea Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Sydney was 63.3°F. The maximum and minimum values were 56.6°F and 70.6°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in September are gloomy but you can also expect sunny days.

Precipitation Totals in September, in

Precipitation total in September for Sydney is 1.8 in. It makes september one of the least rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 9.4 mph.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Sydney in September is 5.4 hours.

Best Time to Visit Sydney
The most sunny months:
August 9 days
June 7 days
May 7 days
The most warm months:
August 75.6 °F
July 74.1 °F
September 67.1 °F
Warmest sea temperature:
August 69.9 °F
September 65.4 °F
July 63.6 °F
The most cold months:
February 27.0 °F
January 28.2 °F
March 32.5 °F
The most rainy months:
November 6 days
December 6 days
March 4 days
The most windy months:
December 12 mph
February 11 mph
November 11 mph

Sydney on the Weather Map

Canada Resorts:
NAME
F°
Halifax +56
Moncton +54
Montreal +52
Nanaimo +58
Niagara Falls +64
Ottawa +54
Prince Edward Island +56
Quebec +50
Saint Andrews +56
St. John's +42
Sydney +54
Toronto +72
Vancouver +58
Victoria +58
Winnipeg +52
24 Hours Weather Forecast
Sydney
Local time: 18:51
28 sep, monday
2100 52°F
NW
11 mph
29 sep, tuesday
0000 52°F
NW
9 mph
0300 52°F
NW
8 mph
0600 52°F
NW
10 mph
0900 54°F
NW
9 mph
1200 56°F
W
7 mph
1500 56°F
W
7 mph
1800 56°F
SW
6 mph