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Climate · Sydney

Sydney in September

Warm and mostly dry, as the days lengthen.

Typical weather, averaged over 30 years

September in Sydney is warm: highs near 70°F, lows near 54°F. Rain falls on about two days a week, and the days lengthen by 45 minutes from the first week to the last.September in Sydney is warm: highs near 21°C, lows near 12°C. Rain falls on about two days a week, and the days lengthen by 45 minutes from the first week to the last.

High
70°F21°Caverage
Low
54°F12°Caverage
Wet days
2a week · 26% of days
Daylight
11h 57mon average

Is September a good time to visit Sydney?

Yes. September is one of Sydney's best months (March to May, or September to December).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 70°F in September, against 63°F to 81°F through the year.Highs near 21°C in September, against 17°C to 27°C through the year.

Chance of a wet day

26% of days in September, against 23% to 43% through the year.

Cloud cover

29% cover in September, against 27% to 44% through the year.

Daylight

11h 57m in September, against 9h 56m to 14h 22m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August66°19°low 50°low 10°2 wet days a weekRain on about two days a week.
  2. September70°21°low 54°low 12°2 wet days a weekRain on about two days a week.
  3. October73°23°low 57°low 14°2 wet days a weekRain on about two days a week.

Where Sydney sits, in September

Australia/Sydney
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
5:55 AMsets 5:46 PM
Above the sea
60 mlow-lying
Latitude
33.9°Ssouthern hemisphere
Nearest of ours
Canberra250 km south-west

The land around Sydney, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Australia in September

high · low · wet days
See September on the planning mapThe whole year in Sydney

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Sydney. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (60 m) against the climate model's (8 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (60 m) against the climate model's (8 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.