The highest day temperature in July 2025 was 92°F. The lowest night temperature was 56°F. The average values for day and night temperatures during July were 77.1°F и 62.3°F respectivly.

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.

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

Precipitation total in July for Sydney is 1.6 in. It makes july the least rainy month of the year.

The average wind speed in July is 7.8 mph. It makes July the most windless month of the year for Sydney.

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 July is 6.4 hours.