Haymarket Weather Forecast
- 14
- 22
Partly cloudy
- 14
- 23
Partly cloudy
- 15
- 24
Partly cloudy
- 15
- 25
Mostly sunny
- 17
- 25
Possible shower
- 17
- 26
Partly cloudy
- 17
- 27
Possible shower
Today 18 Oct Sydney
Mostly clear. Slight chance of a shower. The chance of a thunderstorm in the west early this evening. Winds east to northeasterly 15 to 20 km/h becoming light in the late evening.
Haymarket Temperature Statistics View More
October Temperature
Sydney (Observatory Hill) (2 km)
Lowest 9 October, 2026
11.7 °CAverage October
18.7 °CHighest 12 October, 2026
34.8 °C
Climate (2021–2026)
Sydney (Observatory Hill) (2 km)
Average Low 2021–2026
14.9 °CAverage 2021–2026
18.5 °CAverage High 2021–2026
23.6 °C