Measurements:
°C
°F
Sydney
28°F
E 3 mph
Feels like: 22°F
Precip: 0%
World Resorts Canada Sydney Weather

Sydney Sea Water Temperature

Current Sea Water Temperature:
+28.2°F
Maximum Sea Water Temperature in February: 34.2°F
Minimum Sea Water Temperature in February: 28.0°F
Average water temperature in February: 30.2°F

Sea Water Temperature for the Last 10 Days:

February 05 28.2°F January 31 29.0°F
February 04 28.4°F January 30 29.2°F
February 03 28.4°F January 29 29.8°F
February 02 28.4°F January 28 30.4°F
February 01 28.6°F January 27 31.0°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Sydney was 69.4°F. The maximum and minimum values were 67.6°F and 72.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Sydney was 66.4°F. The maximum and minimum values were 61.8°F and 70.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Sydney was 65.2°F. The maximum and minimum values were 57.6°F and 70.6°F respectively.

Best Time to Visit Sydney
The most sunny months:
August 9 days
September 8 days
June 7 days
The most warm months:
August 75.7 °F
July 74.3 °F
September 67.9 °F
Warmest sea temperature:
August 70.1 °F
September 65.7 °F
July 63.9 °F
The most cold months:
February 26.5 °F
January 28.2 °F
March 32.5 °F
The most rainy months:
November 6 days
December 6 days
May 4 days
The most windy months:
December 12 mph
February 12 mph
November 11 mph

Sydney on the Weather Map

Canada Resorts:
NAME
Halifax +24
Moncton +22
Montreal +16
Niagara Falls +18
Ottawa +14
Prince Edward Island +22
Quebec +14
Saint John +22
St. John's +16
Sydney +28
Toronto +22
Vancouver +50
Victoria +54
Winnipeg +34
Yellowknife -8
24 Hours Weather Forecast
Sydney
Local time: 16:40
05 feb, thursday
1800 28°F
E
3 mph
2100 26°F
E
4 mph
06 feb, friday
0000 22°F
E
7 mph
0300 18°F
E
7 mph
0600 14°F
E
6 mph
0900 14°F
E
7 mph
1200 22°F
S
6 mph
1500 22°F
S
12 mph