Sydney Weather: September
 |
Average Day Temperature: | 67.9°F |
|
Average Night Temperature: | 58.2°F |
|
Sea Water Temperature: | 65.7°F |
|
Number of Sunny Days: | 8 days |
| Sunshine Hours: | 11.7 - 13.3 hours | |
|
Number of Rainy Days: | 4 days |
| Precipitation Totals: | 1.8 in | |
| detailed information | ||
forecast
| Sydney |
Temperature
| Sydney |
Air Temperature in September, °F
The highest day temperature in September 2025 was 83°F. The lowest night temperature was 41°F. The average values for day and night temperatures during September were 68.8°F и 55.7°F respectivly.
Sydney Water Sea Temperature in September, °F
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.
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.
The average wind speed in September is 9.3 mph.
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 5.8 hours.
Sydney on the Weather Map
| Halifax |  |
+24 |
| Moncton | |
+18 |
| Montreal | |
+14 |
| Niagara Falls | |
+14 |
| Ottawa |  |
+14 |
| Prince Edward Island | |
+20 |
| Quebec |  |
+8 |
| Saint John | |
+20 |
| St. John's |  |
+16 |
| Sydney | |
+28 |
| Toronto | |
+18 |
| Vancouver | |
+52 |
| Victoria | |
+54 |
| Winnipeg | |
+40 |
| Yellowknife | |
-10 |
| 1800 |  |
28°F | E 6 mph |
| 2100 | |
24°F | E 6 mph |
| 0000 |  |
22°F | E 7 mph |
| 0300 | |
18°F | E 7 mph |
| 0600 | |
14°F | E 7 mph |
| 0900 |  |
16°F | E 7 mph |
| 1200 | |
22°F | S 11 mph |
| 1500 | |
24°F | S 12 mph |