Measurements:
°C
°F
Sydney
52°F
NW 7 mph
Feels like: 50°F
Precip: 24%
World Resorts Canada Sydney Weather

Sydney Sea Water Temperature

Current Sea Water Temperature:
+58.2°F
Maximum Sea Water Temperature in September: 71.0°F
Minimum Sea Water Temperature in September: 56.6°F
Average water temperature in September: 65.4°F

Sea Water Temperature for the Last 10 Days:

September 28 58.2°F September 23 58.8°F
September 27 58.4°F September 22 60.2°F
September 26 57.2°F September 21 60.6°F
September 25 56.6°F September 20 60.8°F
September 24 57.0°F September 19 62.8°F

When is the Warmest Sea for Sydney?

According to our data for the last three years for Sydney the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Sydney was 68.8°F. The maximum and minimum values were 65.2°F and 72.6°F respectively.

Sea Water Temperature in September

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.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Sydney was 61.8°F. The maximum and minimum values were 54.0°F and 65.0°F respectively.

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 +52
Montreal +52
Nanaimo +54
Niagara Falls +64
Ottawa +54
Prince Edward Island +54
Quebec +50
Saint Andrews +56
St. John's +40
Sydney +52
Toronto +72
Vancouver +58
Victoria +56
Winnipeg +52
24 Hours Weather Forecast
Sydney
Local time: 19:36
28 sep, monday
2100 52°F
NW
7 mph
29 sep, tuesday
0000 52°F
NW
6 mph
0300 52°F
NW
7 mph
0600 52°F
NW
9 mph
0900 54°F
NW
8 mph
1200 56°F
W
6 mph
1500 56°F
W
7 mph
1800 56°F
W
7 mph